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Diagnostic Pathology

  • Research
  • Open Access

High and intermediate grade ductal carcinoma in-situ of the breast: a comparison of pathologic features in core biopsies and excisions and an evaluation of core biopsy features that may predict a close or positive margin in the excision

Diagnostic Pathology20094:26

https://doi.org/10.1186/1746-1596-4-26

©  Fadare et al; licensee BioMed Central Ltd. 2009

  • Received: 10 August 2009
  • Accepted: 19 August 2009
  • Published:

Abstract

Low and high-grade ductal carcinoma in-situ (DCIS) are known to be highly disparate by a multitude of parameters, including progression potential, immunophenotype, gene expression profile and DNA ploidy. In this study, we analyzed a group of intermediate and high-grade DCIS cases to determine how well the core biopsy predicts the maximal pathology in the associated excisions, and to determine if there are any core biopsy morphologic features that may predict a close (≤ 0.2 cm) or positive margin in the subsequent excision. Forty-nine consecutive paired specimens [core biopsies with a maximal diagnosis of DCIS, and their corresponding excisions, which included 20 and 29 specimens from mastectomies and breast conserving surgeries respectively] were evaluated in detail. In 5 (10%) of 49 cases, no residual carcinoma was found in the excision. In another 4 cases, the changes were diagnostic only of atypical ductal hyperplasia. There were 4 and 3 respective cases of invasive and microinvasive carcinoma out of the 49 excision specimens, for an overall invasion frequency of 14%. In 28 cases where a sentinel lymph node evaluation was performed, only 1 was found to be positive. Among the 40 cases with at least residual DCIS in the excision, there were 5 cases in which comedo-pattern DCIS was present in the excision but not in the core biopsy, attributed to the lower maximal nuclear grade in the biopsy proliferation in 4 cases and the absence of central necrosis in the 5th. For the other main histologic patterns, in 8 (20%) of 40 cases, there were more patterns identified in the core biopsy than in the corresponding excision. For the other 32 cases, 100%, 66%, 50%, 33% and 25% of the number of histologic patterns in the excisions were captured in 35%, 5%, 17.5%, 15% and 7.5% of the preceding core biopsies respectively. Therefore, the core biopsy reflected at least half of the non-comedo histologic patterns in 77.5% of cases. In 6(15%) of the 40 cases, the maximum nuclear grade of the excision (grade 3) was higher than that seen in the core biopsy (grade 2). Overall, however, the maximum nuclear grade in the excision was significantly predicted by maximum nuclear grade in the core biopsy (p = 0.028), with a Phi of 0.347, indicating a moderately strong association. At a size threshold of 2.7 cm, there was no significant association between lesional size and core biopsy features. Furthermore, the clear margin width of the cases with lesional size ≤ 2.7 cm (mean 0.69 cm) was not significantly different (p = 0.4) from the cases with lesional size > 2.7 cm (mean 0.56 cm). Finally, among a variety of core biopsy features that were evaluated, including maximum nuclear grade, necrosis, cancerization of lobules, number of tissue cores with DCIS, number of DCIS ducts per tissue core, total DCIS ducts, or comedo-pattern, only necrosis was significantly associated with a positive or close (≤ 0.2 cm) margin on multivariate analysis (Phi of 0.350). It is concluded that a significant change [to invasive disease (14%) or to no residual disease (10%)] is seen in approximately 24% of excisions that follow a core biopsy diagnosis of intermediate or high-grade DCIS. Core biopsy features are of limited value in predicting a close or positive margin in these lesions.

Keywords

  • Core Biopsy
  • Positive Margin
  • Nuclear Grade
  • Tissue Core
  • Histologic Pattern

Introduction

Ductal carcinoma in-situ (DCIS) of the breast is comprised of a heterogeneous spectrum of intraductal epithelial proliferations that are considered the probable precursor lesions to most invasive breast carcinomas [1, 2]. The widespread implementation of screening mammography programs has resulted in a dramatic increase in the incidence of DCIS during the past few decades [3–8]. Whereas most DCIS in the pre-mammographic eras were of the comedo-type, screening-detected DCIS tend to be of a comparatively smaller size and lower grade [9]. Although low-grade and high-grade are unified by the fact that both are intraepithelial proliferations that are breast cancer precursors, they are considered to be substantially different processes. Low-grade DCIS is generally positive for the estrogen & progesterone receptors (ER & PR) and negative for HER2/neu, displays chromosomal losses at 16q, gains in 1q and near euploidy [10, 11]. High-grade DCIS, in contrast, tends to display lack of expression of ER and PR, HER2/neu overexpression/amplification, a multitude of chromosomal changes, and aneuploidy [10, 11]. Expectedly, intermediate grade DCIS displays changes that are intermediate between these two extremes [10]. Detailed evaluations of the protein expression patterns of DCIS of various grades and a comparison of such patterns with those of their synchronous invasive cancers, typically show strong correlations in a grade-dependent pattern [12]. Furthermore, progression from low-grade to high-grade DCIS is considered to be, at most, a very infrequent event [13]. Therefore, in one contemporary model of the evolution of invasive ductal breast carcinomas, well-differentiated ductal carcinomas evolve from low-grade DCIS whereas poorly differentiated invasive ductal carcinomas evolve from high-grade DCIS, with minimal, if any, overlap [11, 13]. The present study focused on DCIS lesions that are not on the lower end of the spectrum to obtain a better understanding of this specific group.

Several aspects of the management of patients with DCIS have engendered significant discussions in the recent medical literature, most notably (for the present purposes), the excision modality (breast conserving surgery versus mastectomy), the necessity of adjuvant radiotherapy and the necessity of sentinel lymph node sampling. [14–17]. Some of these controversies are centered, at least in part, on concerns about the ability of pre-definitive surgery measures, such as imaging and core biopsy, to predict the maximal pathology in the patient (i.e. maximal DCIS grade, presence or absence of stromal invasion, and hence axillary lymph node status). In this study, we analyze a group of intermediate and high-grade DCIS cases to determine how well the core biopsy predicts the maximal pathology in the associated excisions, and to determine if there are any core biopsy morphologic features that may predict a close or positive margin in the subsequent excisions.

Methods

Core Biopsies

Following approval from our institutional review board (protocol FWH 20090088H), the computerized pathologic database of Wilford Hall Medical Center (Lackland AFB, TX) was searched for all core breast biopsies diagnostically coded as ductal carcinoma in situ for the period between January 2006 and January 2009. Cases were excluded if a concurrent invasive or microinvasive carcinoma was diagnosed in the core biopsy and/or a follow-up excision was not available in our records for review. All slides for the core biopsies were reviewed in detail by 2 authors (OF and NFC), and the following items were recorded for each case: 1) range of nuclear grades and maximal nuclear grade (figure 1a-c); 2) histologic patterns of DCIS (i.e. solid, micropapillary, cribriform, clinging, papillary etc, figures 1d-f &2a-b); 3) Presence or absence of central necrosis; 4) Presence or absence of DCIS-associated calcification; 5) Number of tissue cores obtained, as counted on the glass slides; 6) Number of cores with at least one focus with changes diagnostic of DCIS, 7) Presence or absence of lobular cancerization by DCIS (figure 2c); 8) Number of DCIS ducts (ductal cross-sectional profiles of DCIS, vida infra; figure 2d); 9) Type of radiological guidance for biopsy. Nuclear grade was assigned using a modification of the 3-tiered scale employed in the modified Scarff Bloom Richardson (MSBR) system for grading invasive breast cancers [18]. Grade 1 nuclei were generally monomorphic and displayed rounded contours, evenly dispersed chromatin whose overall effect is to result in a vaguely hyperchromatic appearance, and inconspicuous nucleoli (figure 1a). Grade 3 nuclei displayed marked nuclear pleomorphism, and cases with grade 3 nuclei were typically characterized by a 3-fold or greater variation in nuclear size and shape (figure 1c). Grade 2 nuclei displayed prominent nucleoli, irregular distributed chromatin and a level of pleomorphism that was intermediate between grade 3 and grade 1 nuclei (figure 1b). Cross sectional profiles of DCIS were counted individually in every tissue core and added (figure 2d). When it could be clearly determined that a focus of interest represented DCIS cancerization of a single terminal ductolobular unit (figure 2c), only 1 cross sectional profile was counted for the whole focus. Unless otherwise specified, the term "solid pattern" is used herein as a generic descriptor for an intraductal epithelial proliferation that fills the duct and which lacks micropapillary and cribriform areas, irrespective of its other features. As such, it encompasses the lesions that have traditionally being referred to as displaying the "comedo-pattern DCIS" or "comedo-DCIS". Comedo-pattern DCIS was defined as solid pattern DCIS with central necrosis and grade 3/3 atypia (figure 1e). By definition, this study only included cases with intermediate or high-grade DCIS in the core biopsy and/or the corresponding excision. Cases of intermediate grade DCIS were characterized by grade 1/3 nuclear atypia with necrosis, or grade 2/3 nuclear atypia irrespective of necrosis status. Cases of high-grade DCIS were characterized by grade 3/3 nuclear atypia with or without necrosis.
Figure 1
Figure 1

a-c: Three-tiered nuclear grading system showing grade 1(1a), grade 2 (1b) and grade 3 (1c) cytologic features. d: Solid pattern ductal carcinoma in-situ with grade 2/3 atypia and microcalcification (upper left field), and solid pattern ductal carcinoma in-situ with central necrosis and nuclear grade 2/3 (lower right field). e: Solid pattern ductal carcinoma in-situ with grade 3/3 atypia and central necrosis (comedo-pattern ductal carcinoma in-situ). f: Cribriform pattern ductal carcinoma in-situ with grade 2/3 atypia and foci of necrosis.

Figure 2
Figure 2

a: Clinging pattern ductal carcinoma in-situ. b: Micropapillary pattern ductal carcinoma in-situ. c: Cancerization of lobules by ductal carcinoma in-situ. d: As an example of the counting system for ductal carcinoma in-situ ducts, 6 ducts would be counted in this microscopic field.

Excisions

Slides for the excisions associated with the aforementioned core biopsies were similarly reviewed. The following items were recorded for each case: 1) range of nuclear grades and maximal nuclear grade; 2) histologic patterns of DCIS, 3) Presence or absence of central necrosis in an otherwise solid pattern; 4) Presence or absence of necrosis in other histologic patterns; 5) Presence or absence of DCIS-associated calcification; 5) Type of excision (breast-conserving surgery [BCS] or mastectomy); 7) Specimen size in 3 dimensions; 8) Number of paraffin-embedded blocks of breast tissue processed; 9) Number of processed blocks with DCIS; 10) Size of DCIS, which was determined using the recently reported findings of Dadmanesh et al [19] - 0.4 cm multiplied by number of blocks with DCIS; 11) Presence or absence of invasive or microinvasive carcinoma; 12) regional lymph node status; 13) Duration between biopsy and excision; 14) Margin status, with a "clear" margin width defined as the linear distance, as measured microscopically, between a DCIS duct and the closest inked margin for that case. All microscopic measurements were made on a BX45 microscope (model U-DO3; Olympus Corporation, Tokyo, Japan). In cases with "positive" margins, the aforementioned "linear distance" was 0 cm. A "close" margin was defined as ≤ 0.2 cm.

Statistics

Statistical analyses were performed using SPSS for Windows, release 11.5.0 (SPSS Inc., Chicago, IL). Descriptive statistics were prepared for the above mentioned variables. Strength of association between individual variables recorded in the core biopsy and excision (BCS and mastectomy) were measured using Pearson chi-square, Fisher's exact test, and Phi. In order to determine whether any single variable or group of variables predicts a close margin in subsequent excision, linear regression and binary logistic regression were used. Associational analyses were performed on all qualifying cases with residual carcinoma in the subsequent excision, as well as on cases separated into BCS and mastectomy groups.

Results

A total of 49 paired biopsy/excisions specimens ("cases") from 47 patients were reviewed (2 patients each with bilateral disease and hence bilateral specimen pairs). There was an average of 33.4 (± 11) days between biopsies and excisions (10-72; median 30).

Core Biopsies

Core biopsies were ultrasound and stereotactic-guided in 7 and 41 cases respectively. Guidance was unknown in the 49th case. Indications were predominantly for mammographic abnormalities (mass lesion & calcifications in 3 cases, non-specific area of enhancement in 1 case, and calcifications only in the remaining cases). An average of 9.1 (± 4.7) tissue cores per case was processed (1 to 25; median 8). DCIS was present in an average of 4.4 (± 2.4) tissue cores per case (1-11; median 4). DCIS ducts ranged in number from 4 to 117 (mean 26.4) in these cores. Cancerization of lobules by DCIS was identified in 23 (47%) of 49 cases. DCIS-associated calcification was present in 40 (81.6%) of 49 cases. A comedo-pattern DCIS (solid with central necrosis and nuclear grade 3/3) was present in 16 cases. The frequency and distribution of the various histologic patterns in the subset of cases associated with residual disease in the excision are outlined in Table 1.
Table 1

A comparison of biopsies and excisions regarding the frequency of selected pathologic features of DCIS**

Morphologic features

Core biopsy

(n = 40)

Excision

(n = 40)

Maximum nuclear grade 3

18

19

Maximum nuclear grade 2

22

21

Necrosis in DCIS

33

29

Calcification in DCIS

32

29

Comedo-pattern necrosis present (Solid pattern with central necrosis and grade 3/3 nuclear atypia)

16

14

Non-comedo pattern necrosis present (associated with grade 2/3 atypia and/or non-solid patterns)

17

16

Solid pattern only (irrespective of atypia or necrosis)

17

8

Solid and micropapillary only

0

1

Solid, micropapillary, and cribriform only

7

5

Micropapillary only

1

0

Micropapillary and clinging

1

0

Cribriform only

0

1

Micropapillary and cribriform only

2

1

Solid, micropapillary, clinging and cribriform only

0

3

Clinging only

0

0

DCIS ductal carcinoma in-situ; **excludes cases in which no residual DCIS was found in the excision.

Excisions

Twenty (41%) and 29 (59%) of the excisions were products of mastectomies and various permutations of breast conserving surgeries (BCS), respectively. There was no residual carcinoma in 9 (18.4%) of 49 cases. Four (44.4%) of these 9 cases had changes diagnostic of atypical ductal hyperplasia (including one case that was re-classified from atypical lobular hyperplasia), whereas no atypical proliferations were present in the remaining five. The remaining 40 cases were comprised of specimens from 18 mastectomies and 22 BCS. The average specimen sizes (maximal dimensions) for the mastectomy and BCS-associated specimens were 19.6 cm (± 4.08) and 9.36 cm (± 2.5) respectively. A per-case average of 27 (± 11.9) tissue sections was processed from the 40 cases (10-60; median 24). For the 18 mastectomy specimens, an average of 24.6 (± 9.4) sections was processed per case (10-44; median 22.5). For the BCS-associated specimens, an average of 29.09 (± 13.4) sections was processed per case (12-60; median 25.5). Overall, an average of 7.52 (± 5) sections per case had DCIS (1-20; median 7), including an average of 6.4 (± 3.9) sections in the BCS-associated specimens and average of 8.9 (± 5.9) sections in the mastectomy specimens.

Biopsies and excisions

There were 4 cases of invasive carcinoma and 3 examples of microinvasive carcinoma out of the 49 excision specimens that were evaluated, for an overall invasion frequency of 14%. The 4 cases included 1 mucinous and 3 ductal (not otherwise specified) carcinomas, and all were grade II/III by MSBR criteria. Axillary lymph nodes were also positive in 1 of these 4 cases (2 of 4 lymph nodes removed as part of sentinel node evaluation; 1 metastatic deposit > 0.2 cm and the other < 0.2 cm). Of the 28 cases in which a sentinel lymph node evaluation was performed, this was the only case with a positive node. As previously noted, in 5 (10.2%) of 49 cases, no residual carcinoma was found. In another 4 cases, the changes were diagnostic only of atypical ductal hyperplasia

Among the 40 cases with residual disease, the histologic patterns identified singly or in various combinations were micropapillary, clinging, cribriform, and solid - the latter including the comedo-pattern. There were 5 cases in which comedo-pattern DCIS was present in the excision but not in the core biopsy. The discrepancy was attributed to lower maximal nuclear grade in the biopsy proliferation in 4 cases and the absence of central necrosis in the 5th. When necrosis is considered in general (i.e. irrespective of whether it is specifically in association with the comedo-pattern), there were also 5 cases in which this finding was present in the excision but absent in the preceding biopsy. In 6 (15%) of the 40 pairs, calcification was present only in the excision specimens, For the other histologic patterns, in 8 (20%) of 40 cases, there were more histologic patterns identified in the core biopsy than in the corresponding excision. For the other 32 cases, there was general, albeit varying degrees of agreement between the core biopsies and the excisions. For the core histologic patterns, i.e. solid, micropapillary, cribriform, and clinging, 100%, 66%, 50%, 33% and 25% of the number of histologic patterns in the excisions were captured in 14 (35%), 2 (5%), 7 (17.5%), 6 (15%) and 3 (7.5%) of these 32 core biopsies respectively. Therefore, the core biopsy captured at least half of the core non-comedo histologic patterns in 77.5% of cases. These associations were not reflected upon statistical analysis: Pearson chi-square showed that among the histologic types of DCIS, only the presence of a cribriform pattern in the core biopsy significantly predicted the presence of a cribriform pattern in the excision (p = 0.028), with a Phi of 0.348, indicating a moderately strong association; this association did not hold with Fisher's exact test on the separate BCS and mastectomy groups

A general level of congruence between core biopsies and excisions was observed regarding maximal nuclear grade. Parenthetically, all 40 cases were either maximum nuclear grade 2 (n = 22) or 3 (n = 18). As such, there were 22 and 18 cases of intermediate and high-grade DCIS respectively. In 6 (15%) of the 40 cases, the maximum nuclear grade of the excision (grade 3) was higher than that seen in the core biopsy (grade 2). Pearson chi-square showed that maximum nuclear grade in the excision was significantly predicted by maximum nuclear grade in the core biopsy (p = 0.028), with a Phi of 0.347, indicating a moderately strong association. Again, this association did not hold with Fisher's exact test on the separate BCS and mastectomy groups. Other features that were evaluated, including calcification, necrosis, non-cribriform histologic pattern, and range of nuclear grades did not show a statistically significant correlation between the core biopsy and subsequent excision, either globally or within separate BCS and mastectomy groups, which may be related to our small sample size.

Margin status in excisions and core biopsy features

The average clear margin width for all 40 cases was 0.63 cm (± 0.96; 0-4.5 cm; median 0.2 cm), including 6 cases with positive margins, 21 cases with clear margin width ≤ 0.2 cm, and 19 cases with clear margin width > 0.2 cm. For the 22 specimens associated with BCS, the average clear margin width was 0.35 cm (± 0.41; 0-1.5 cm; median 0.15 cm), including 5 cases with positive margins, 13 cases with clear margin width ≤ 0.2 cm, and 9 cases with clear margin width > 0.2 cm. For the 18 mastectomy-associated specimens, the average clear margin width was 0.97 cm (± 1.30; 0-4.5 cm; median 0.35 cm), including 1 case with positive margins, 8 cases with clear margin width ≤ 0.2 cm, and 10 cases with clear margin width > 0.2 cm. On univariate and multivariate analysis, the only core biopsy variable which significantly predicted a close margin on excision was the presence of necrosis (p = 0.027), with a Phi of 0.350, indicating a moderately strong correlation. This association did not hold when evaluated on separate BCS and mastectomy groups. No other significant association between core biopsy features, including maximum nuclear grade, comedo-pattern present, cancerization of lobules, number of tissue cores processed, DCIS ducts per tissue core, number of tissue cores with DCIS or other histologic patterns, and margin status was identified at the ≤ versus > 0.2 cm threshold (Table 2)
Table 2

Relationship between core biopsy features and margin status (univariate analysis)**

 

Overall (n = 40)

Breast conserving surgery specimens (n = 22), margin status

Mastectomy specimens (n = 18), margin status

Core biopsy features

≤ 0.2 cm

(n = 21)

> 0.2 cm

(n = 19)

p

≤ 0.2 cm

(n = 13)

> 0.2 cm

(n = 9)

p

≤ 0.2 cm

(n = 8)

> 0.2 cm

(n = 10)

p

Maximum nuclear grade 3/3

(n = 18)

9

9

1

3

3

1

6

6

1

Maximum nuclear grade 2/3

(n = 22)

12

10

0.76

10

6

0.29

2

4

0.57

Necrosis present

(n = 33)

16

17

1

10

8

0.74

6

9

0.47

Comedo-pattern present

(n = 16)

8

8

1

3

2

NA

5

6

1

Cancerization of lobules present

(n = 21)

9

12

0.54

4

5

1

5

7

0.68

Number of tissue cores processed (mean)

8.6

9.4

0.56

9.4

8.4

0.66

7.25

10.3

0.08

DCIS ducts per tissue core (mean)

5.9

6.1

0.85

6

4.2

0.17

5.9

7.9

0.35

Number of tissue cores with DCIS

4.42

5.05

0.45

4.23

3.89

0.68

4.75

6.1

0.31

Total DCIS ducts (mean)

25.9

31.4

0.49

23.1

17.6

0.35

30.25

43.9

0.4

Solid Pattern present

(n = 37)

20

17

0.64

13

7

0.11

7

10

0.49

Micropapillary pattern present

(n = 10)

6

4

0.66

3

2

NA

3

2

NA

Cribriform pattern present

(n = 18)

8

10

0.53

5

5

1

3

5

0.62

Clinging pattern present

(n = 4)

3

1

NA

0

1

NA

3

0

NA

DCIS ductal carcinoma in-situ; **excludes cases in which no residual DCIS was found in the excision; NA not applicable

Tumor size in excisions and core biopsy features

The average DCIS lesional size, as determined by multiplying 0.4 cm by number of blocks with DCIS [19], was 3.01 cm (± 1.99) (range 0.4-8 cm; median 2.8 cm). There was no significant difference regarding lesional size between the mastectomy specimens [mean 3.56 cm (± 2.34); median 3.6 cm] and the BCS-associated specimens [mean 2.56 cm (± 1.55); median 2.6 cm]. The average DCIS size was used to classify the 40 cases into two groups for analytical purposes. The first group was comprised of all cases with lesional size in the excision ≤ 2.7 cm (n = 22) whereas the lesional size was greater than 2.7 cm in the 18 cases that constituted the other group. At this size threshold, there was no significant association between lesional size in excisions and core biopsy features (number of DCIS ducts, DCIS ducts per tissue core, number of tissue cores with DCIS, and cancerization of lobules; Table 3). Furthermore, the clear margin width of the cases with lesional size ≤ 2.7 cm (mean 0.69 cm) was not significantly different from the cases with lesional size > 2.7 cm (mean 0.56 cm).
Table 3

Lack of significant correlation between selected core biopsy features and lesional size in excisions (at the ≤ 2.7 cm versus > 2.7 cm threshold)

Core Biopsy features

Lesional size in excision ≤ 2.7 cm

(n = 22)

Lesional size in excision > 2.7 cm

(n = 18)

P

Total DCIS ducts

(means)

25.3

28.0

NS

Number of tissue cores with DCIS

(means)

5.1

4.4

NS

DCIS ducts per tissue core

(means)

5.01

6.3

NS

Cancerization of lobules present

12

8

NS

DCIS: ductal carcinoma in-situ

NS: Not significant

Discussion

In the current environment, wherein screening-detected, calcification-associated, and impalpable DCIS are more frequently encountered, the core biopsy has emerged as an excellent modality for the preoperative establishment of the diagnosis and for the optimization of therapeutic options [20, 21]. Nonetheless, the core biopsy is associated with a somewhat higher inaccuracy rate for the diagnosis of DCIS than for the diagnosis of invasive cancer [22, 23]. In the study of Dillon et al [22], for example, the initial core biopsy was not fully diagnostic in 33% and 26% of their cases of intermediate and high-grade DCIS, respectively. Previous studies have evaluated the significance of DCIS size, extent, and histologic features in core biopsies as a predictor of margin status in the subsequent excisions [24–27]. However, these studies were centered on cases of DCIS admixed with invasive carcinoma. There is very limited published data on a potential correlation between the pathologic features of pure DCIS in core biopsies and margin status. The goals of the present study are two-fold: 1) To determine if there are any core biopsy morphologic features that may predict a close or positive margin in the subsequent excision in a group of intermediate and high-grade DCIS cases, and 2) To determine how well the core biopsy predicts the maximal pathology in the associated excisions.

Although there is no consensus of what constitutes a "close" margin [28], there is a near consensus that the status of margins after an excision for DCIS is a strong predictor of residual disease and/or local recurrence [29–34]. As such, there have been a variety of proposals that are aimed at establishing the adequacy of the excision intraoperatively, including intraoperative specimen ultrasonography, intraoperative specimen mammography, gross specimen examination, the routine sampling of the "cavity margins" around the initial excision, and frozen section evaluation of margins [35–39]. While mammographic features, such as linear branching calcification, accurately identify many examples of high-grade DCIS as such [40, 41], this modality does not do so invariably [42], and may underestimate lesional size and extent, especially in non-comedo DCIS [43–45]. It may therefore be of clinical utility to have core biopsy features that may predict the necessity for a more generous excision during the initial surgery, which in addition to the aforementioned reasons, may also help stratify those patients that would qualify for specific therapies that require negative margins such as accelerated, hypofractionated whole breast radiotherapy [46] or partial breast intraoperative radiation [47]. Furthermore, in addition to histologic grade and margin status, it has been shown that several other pathologic features in the excision specimens may be associated with local recurrence [48–51]. Among these are volume of DCIS near margins and the overall DCIS volume in the specimen - whether deduced from the number of slides with DCIS, number of DCIS ducts or DCIS-cancerized lobules, or percentage of blocks with DCIS [48–51]. If any core biopsy features can predict a large volume in the excision, this may also be of clinical utility.

Our study shows that of all the core biopsy features that were evaluated, including maximum nuclear grade, necrosis, cancerization of lobules, number of tissue cores with DCIS, number of DCIS ducts per tissue core, total DCIS ducts, comedo-pattern or other histologic patterns, only necrosis was significantly associated with a positive or close margin on univariate and multivariate analysis. Similarly, at the 2.7 cm size threshold, there was no significant correlation between lesional size in excisions and selected core biopsy features (number of DCIS ducts, DCIS ducts per tissue core, number of tissue cores with DCIS, and cancerization of lobules). Most of the core biopsy features evaluated herein are therefore of limited value in predicting close or positive margins, or large lesional size in intermediate and high-grade DCIS. Our findings, however, need to be confirmed in substantially larger datasets from multiple institutions.

The second goal of this study was to determine how well the core biopsy predicted the maximal pathology in the patient, as evaluated in the subsequent excisions in this specific dataset of intermediate and high-grade DCIS. Regarding the risk of invasive disease in a core biopsy showing DCIS alone, previous studies of pan-grade DCIS have shown that invasive disease is present in 8 to 36% of cases [52–57]. In high-risk subsets, i.e. those patients with large masses, numerous mammographic calcifications, DCIS of high histologic grade, or presentation with a palpable mass, this risk is approximately 41.5 to 48% [58, 59]. In our own dataset, we identified 4 examples of invasive carcinoma and 3 examples of microinvasive carcinoma out of the 49 excision specimens that we evaluated. Therefore, the risk of any kind of invasive disease in our patient population after a core biopsy diagnosis of intermediate or high-grade DCIS is somewhat low at 14% (7/49). There were too few cases of invasive disease to stratify for preoperative findings that may potentially predict invasion. The reverse corollary is that in 5 (10.2%) of 49 cases, no residual carcinoma was found. In another 4 cases, the changes were diagnostic only of atypical ductal hyperplasia. A recent report on 40,395 screening detected breast malignancies showed that in 174 cases no carcinoma was identified in the excision subsequent to the core biopsy [60]. In 165 of these cases, the authors concluded that the lesion was entirely removed in the core biopsy, whereas the remaining 9 were considered to false positive diagnoses in the biopsies [60]. Therefore, allowing for differences in sample size and composite of lesional types, our rate of finding no residual disease (5/49; 10.2%) is higher but largely comparable to the reported findings in that study (165/40,395; 4.3%).

The necessity for sentinel lymph node evaluation in patients with pure DCIS, and whether patient subsets can be preoperatively identified that would benefit the most from this evaluation, continues to be controversial [61, 62]. Sentinel nodes are found to be positive in 4.8% to 13% of patients with a core biopsy diagnosis of DCIS [57, 63–66]. Our findings provide insights into the frequency of lymph node involvement in this group of intermediate and high-grade DCIS. Amongst the subset of 28 patients that received any nodal evaluation, only 1 (3.6%) had sentinel lymph node involvement. Parenthetically, for this single patient, only touch preparations of the lymph node's cut section were performed intraoperatively, and did not reveal malignant cells even upon their detailed review in the aftermath. The malignant cells became morphologically evident only after subsequent additional node sectioning, when a "negative" intraoperative diagnosis had already been rendered. As such, she did not benefit from sentinel node evaluation. Our experience, therefore, is that the frequency of nodal involvement is low, which is concordant with most previously reported findings. However, our data is insufficient to make assertions about the validity of routine sentinel node evaluation in this group of patients.

We conclude that most of the core biopsy features evaluated herein are of limited value in predicting a close or positive margin in high and intermediate grade DCIS. A significant change [to invasive disease (14%) or to no residual disease (10%)] is seen in approximately 24% of excisions that follow a core biopsy diagnosis of intermediate or high-grade DCIS.

Declarations

Acknowledgements

This study was presented in part at the American Society of Clinical Pathology (Chicago, IL. October 29-November 1, 2009). The views expressed in this article are those of the authors and do not reflect the official policy of the Department of Defense or other Departments of the United States Government.

Authors’ Affiliations

(1)
Department of Pathology, Wilford Hall Medical Center, San Antonio, USA
(2)
Department of Pathology, University of Texas Health Science Center at San Antonio, San Antonio, USA
(3)
Department of Pathology and Laboratory Services, Brooke Army Medical Center, Ft Sam Houston, San Antonio, USA
(4)
Pathology Program, San Antonio Uniformed Services Health Education Consortium, San Antonio, USA
(5)
Department of Pathology, Southwest Washington Medical Center, Vancouver, USA

References

  1. van Diest PJ: Ductal carcinoma in situ in breast carcinogenesis. J Pathol. 1999, 187: 383-4. 10.1002/(SICI)1096-9896(199903)187:4<383::AID-PATH299>3.0.CO;2-H.View ArticlePubMedGoogle Scholar
  2. Reis-Filho JS, Lakhani SR: The diagnosis and management of pre-invasive breast disease: genetic alterations in pre-invasive lesions. Breast Cancer Res. 2003, 5: 313-9. 10.1186/bcr650.PubMed CentralView ArticlePubMedGoogle Scholar
  3. Ernster VL, Barclay J, Kerlikowske K, Grady D, Henderson C: Incidence of and treatment for ductal carcinoma in situ of the breast. JAMA. 1996, 275: 913-8. 10.1001/jama.275.12.913.View ArticlePubMedGoogle Scholar
  4. Joslyn SA: Ductal carcinoma in situ: trends in geographic, temporal, and demographic patterns of care and survival. Breast J. 2006, 12: 20-7. 10.1111/j.1075-122X.2006.00182.x.View ArticlePubMedGoogle Scholar
  5. Ernster VL, Ballard-Barbash R, Barlow WE, Zheng Y, Weaver DL, Cutter G, Yankaskas BC, Rosenberg R, Carney PA, Kerlikowske K, Taplin SH, Urban N, Geller BM: Detection of ductal carcinoma in situ in women undergoing screening mammography. J Natl Cancer Inst. 2002, 94: 1546-54.View ArticlePubMedGoogle Scholar
  6. Sumner WE, Koniaris LG, Snell SE, Spector S, Powell J, Avisar E, Moffat F, Livingstone AS, Franceschi D: Results of 23,810 cases of ductal carcinoma-in-situ. Ann Surg Oncol. 2007, 14: 1638-43. 10.1245/s10434-006-9316-1.View ArticlePubMedGoogle Scholar
  7. van Steenbergen LN, Voogd AC, Roukema JA, Louwman WJ, Duijm LE, Coebergh JW, Poll-Franse van de LV: Screening caused rising incidence rates of ductal carcinoma in situ of the breast. Breast Cancer Res Treat. 2009, 115: 181-3. 10.1007/s10549-008-0067-5.View ArticlePubMedGoogle Scholar
  8. Luke C, Priest K, Roder D: Changes in incidence of in situ and invasive breast cancer by histology type following mammography screening. Asian Pac J Cancer Prev. 2006, 7: 69-74.PubMedGoogle Scholar
  9. Hofvind S, Sørum R, Thoresen S: Incidence and tumor characteristics of breast cancer diagnosed before and after implementation of a population-based screening-program. Acta Oncol. 2008, 47: 225-31. 10.1080/02841860701518041.View ArticlePubMedGoogle Scholar
  10. Reis-Filho JS, Lakhani SR: Molecular genetics of ADH/DCIS and ALH/LCIS. Breast Pathology. Edited by: O'Malley FP, Pinder SE. 2006, Philadelphia: Churchill Livingstone Elsevier, 185-9.View ArticleGoogle Scholar
  11. Simpson PT, Reis-Filho JS, Gale T, Lakhani SR: Molecular evolution of breast cancer. J Pathol. 2005, 205: 248-54. 10.1002/path.1691.View ArticlePubMedGoogle Scholar
  12. Leong AS, Sormunen RT, Vinyuvat S, Hamdani RW, Suthipintawong C: Biologic markers in ductal carcinoma in situ and concurrent infiltrating carcinoma. A comparison of eight contemporary grading systems. Am J Clin Pathol. 2001, 115: 709-18. 10.1309/WBU9-22QN-C3NA-2Q12.View ArticlePubMedGoogle Scholar
  13. Reis-Filho JS, Simpson PT, Gale T, Lakhani SR: The molecular genetics of breast cancer: the contribution of comparative genomic hybridization. Pathol Res Pract. 2005, 201: 713-25. 10.1016/j.prp.2005.05.013.View ArticlePubMedGoogle Scholar
  14. Franceschini G, Terribile D, Magno S, Fabbri C, D'Alba P, Chiesa F, Di Leone A, Scafetta I, Masetti R: Current controversies in the treatment of ductal carcinoma in situ of the breast. Ann Ital Chir. 2008, 79: 151-5.PubMedGoogle Scholar
  15. Rakovitch E, Pignol JP, Chartier C, Hanna W, Kahn H, Wong J, Mai V, Paszat L: The management of ductal carcinoma in situ of the breast: a screened population-based analysis. Breast Cancer Res Treat. 2007, 101: 335-47. 10.1007/s10549-006-9302-0.View ArticlePubMedGoogle Scholar
  16. Smith BD, Smith GL, Buchholz TA: Controversies over the role of radiation therapy for ductal carcinoma in situ. Expert Rev Anticancer Ther. 2008, 8: 433-41. 10.1586/14737140.8.3.433.View ArticlePubMedGoogle Scholar
  17. van Deurzen CH, Hobbelink MG, van Hillegersberg R, van Diest PJ: Is there an indication for sentinel node biopsy in patients with ductal carcinoma in situ of the breast? A review. Eur J Cancer. 2007, 43: 993-1001. 10.1016/j.ejca.2007.01.010.View ArticlePubMedGoogle Scholar
  18. Elston CW, Ellis IO: Pathological prognostic factors in breast cancer. I. The value of histological grade in breast cancer: experience from a large study with long-term follow-up. Histopathology. 1991, 19: 403-10. 10.1111/j.1365-2559.1991.tb00229.x.View ArticlePubMedGoogle Scholar
  19. Dadmanesh F, Fan X, Dastane A, Amin MB, Bose S: Comparative analysis of size estimation by mapping and counting number of blocks with ductal carcinoma in situ in breast excision specimens. Arch Pathol Lab Med. 2009, 133: 26-30.PubMedGoogle Scholar
  20. Cheng MS, Fox J, Hart SA: Impact of core biopsy on the management of screen-detected ductal carcinoma in situ of the breast. ANZ J Surg. 2003, 73: 404-6. 10.1046/j.1445-2197.2003.t01-1-02656.x.View ArticlePubMedGoogle Scholar
  21. Fajardo LL, Pisano ED, Caudry DJ, Gatsonis CA, Berg WA, Connolly J, Schnitt S, Page DL, McNeil BJ, Radiologist Investigators of the Radiologic Diagnostic Oncology Group V: Stereotactic and sonographic large-core biopsy of nonpalpable breast lesions: results of the Radiologic Diagnostic Oncology Group V study. Acad Radiol. 2004, 11: 293-308. 10.1016/S1076-6332(03)00510-5.View ArticlePubMedGoogle Scholar
  22. Dillon MF, Quinn CM, McDermott EW, O'Doherty A, O'Higgins N, Hill AD: Diagnostic accuracy of core biopsy for ductal carcinoma in situ and its implications for surgical practice. J Clin Pathol. 2006, 59: 740-3. 10.1136/jcp.2005.034330.PubMed CentralView ArticlePubMedGoogle Scholar
  23. Liberman L, Dershaw DD, Glassman JR, Abramson AF, Morris EA, LaTrenta LR, Rosen PP: Analysis of cancers not diagnosed at stereotactic core breast biopsy. Radiology. 1997, 203: 151-7.View ArticlePubMedGoogle Scholar
  24. Mai KT, Yazdi HM, Ford JC, Matzinger FR: Predictive value of extent and grade of ductal carcinoma in situ in radiologically guided core biopsy for the status of margins in lumpectomy specimens. Eur J Surg Oncol. 2000, 26: 646-51. 10.1053/ejso.2000.0975.View ArticlePubMedGoogle Scholar
  25. Dzierzanowski M, Melville KA, Barnes PJ, MacIntosh RF, Caines JS, Porter GA: Ductal carcinoma in situ in core biopsies containing invasive breast cancer: correlation with extensive intraductal component and lumpectomy margins. J Surg Oncol. 2005, 90: 71-6. 10.1002/jso.20242.View ArticlePubMedGoogle Scholar
  26. Jimenez RE, Bongers S, Bouwman D, Segel M, Visscher DW: Clinicopathologic significance of ductal carcinoma in situ in breast core needle biopsies with invasive cancer. Am J Surg Pathol. 2000, 24: 123-8. 10.1097/00000478-200001000-00015.View ArticlePubMedGoogle Scholar
  27. Dillon MF, Maguire AA, McDermott EW, Myers C, Hill AD, O'Doherty A, Quinn CM: Needle core biopsy characteristics identify patients at risk of compromised margins in breast conservation surgery. Mod Pathol. 2008, 21: 39-45. 10.1038/modpathol.3800975.View ArticlePubMedGoogle Scholar
  28. von Smitten K: Margin status after breast-conserving treatment of breast cancer: how much free margin is enough?. J Surg Oncol. 2008, 98: 585-7. 10.1002/jso.21038.View ArticlePubMedGoogle Scholar
  29. Meijnen P, Oldenburg HS, Peterse JL, Bartelink H, Rutgers EJ: Clinical outcome after selective treatment of patients diagnosed with ductal carcinoma in situ of the breast. Ann Surg Oncol. 2008, 15: 235-43. 10.1245/s10434-007-9659-2.View ArticlePubMedGoogle Scholar
  30. Dillon MF, Mc Dermott EW, O'Doherty A, Quinn CM, Hill AD, O'Higgins N: Factors affecting successful breast conservation for ductal carcinoma in situ. Ann Surg Oncol. 2007, 14: 1618-28. 10.1245/s10434-006-9246-y.View ArticlePubMedGoogle Scholar
  31. Cheng L, Al-Kaisi NK, Gordon NH, Liu AY, Gebrail F, Shenk RR: Relationship between the size and margin status of ductal carcinoma in situ of the breast and residual disease. J Natl Cancer Inst. 1997, 89: 1356-60. 10.1093/jnci/89.18.1356.View ArticlePubMedGoogle Scholar
  32. Neuschatz AC, DiPetrillo T, Steinhoff M, Safaii H, Yunes M, Landa M, Chung M, Cady B, Wazer DE: The value of breast lumpectomy margin assessment as a predictor of residual tumor burden in ductal carcinoma in situ of the breast. Cancer. 2002, 94: 1917-24. 10.1002/cncr.10460.View ArticlePubMedGoogle Scholar
  33. Rashtian A, Iganej S, Amy Liu IL, Natarajan S: Close or positive margins after mastectomy for DCIS: pattern of relapse and potential indications for radiotherapy. Int J Radiat Oncol Biol Phys. 2008, 72: 1016-20.View ArticlePubMedGoogle Scholar
  34. Sabel MS, Rogers K, Griffith K, Jagsi R, Kleer CG, Diehl KA, Breslin TM, Cimmino VM, Chang AE, Newman LA: Residual disease after re-excision lumpectomy for close margins. J Surg Oncol. 2009, 99: 99-103. 10.1002/jso.21215.View ArticlePubMedGoogle Scholar
  35. Tan KY, Tan SM, Chiang SH, Tan A, Chong CK, Tay KH: Breast specimen ultrasound and mammography in the prediction of tumour-free margins. ANZ J Surg. 2006, 76: 1064-7. 10.1111/j.1445-2197.2006.03941.x.View ArticlePubMedGoogle Scholar
  36. Cabioglu N, Hunt KK, Sahin AA, Kuerer HM, Babiera GV, Singletary SE, Whitman GJ, Ross MI, Ames FC, Feig BW, Buchholz TA, Meric-Bernstam F: Role for intraoperative margin assessment in patients undergoing breast-conserving surgery. Ann Surg Oncol. 2007, 14: 1458-71. 10.1245/s10434-006-9236-0.View ArticlePubMedGoogle Scholar
  37. Chagpar A, Yen T, Sahin A, Hunt KK, Whitman GJ, Ames FC, Ross MI, Meric-Bernstam F, Babiera GV, Singletary SE, Kuerer HM: Intraoperative margin assessment reduces reexcision rates in patients with ductal carcinoma in situ treated with breast-conserving surgery. Am J Surg. 2003, 186: 371-7. 10.1016/S0002-9610(03)00264-2.View ArticlePubMedGoogle Scholar
  38. Olson TP, Harter J, Muñoz A, Mahvi DM, Breslin T: Frozen section analysis for intraoperative margin assessment during breast-conserving surgery results in low rates of re-excision and local recurrence. Ann Surg Oncol. 2007, 14: 2953-60.View ArticlePubMedGoogle Scholar
  39. Cao D, Lin C, Woo SH, Vang R, Tsangaris TN, Argani P: Separate cavity margin sampling at the time of initial breast lumpectomy significantly reduces the need for reexcisions. Am J Surg Pathol. 2005, 29: 1625-32. 10.1097/01.pas.0000180448.08203.70.View ArticlePubMedGoogle Scholar
  40. Hermann G, Keller RJ, Drossman S, Caravella BA, Tartter P, Panetta RA, Bleiweiss IJ: Mammographic pattern of microcalcifications in the preoperative diagnosis of comedo ductal carcinoma in situ: histopathologic correlation. Can Assoc Radiol J. 1999, 50: 235-40.PubMedGoogle Scholar
  41. Barreau B, de Mascarel I, Feuga C, MacGrogan G, Dilhuydy MH, Picot V, Dilhuydy JM, de Lara CT, Bussières E, Schreer I: Mammography of ductal carcinoma in situ of the breast: review of 909 cases with radiographic-pathologic correlations. Eur J Radiol. 2005, 54: 55-61. 10.1016/j.ejrad.2004.11.019.View ArticlePubMedGoogle Scholar
  42. Dinkel HP, Gassel AM, Tschammler A: Is the appearance of microcalcifications on mammography useful in predicting histological grade of malignancy in ductal cancer in situ?. Br J Radiol. 2000, 73: 938-44.View ArticlePubMedGoogle Scholar
  43. Holland R, Hendriks JH, Vebeek AL, Mravunac M, Schuurmans Stekhoven JH: Extent, distribution, and mammographic/histological correlations of breast ductal carcinoma in situ. Lancet. 1990, 335: 519-22. 10.1016/0140-6736(90)90747-S.View ArticlePubMedGoogle Scholar
  44. Holland R, Hendriks JH: Microcalcifications associated with ductal carcinoma in situ: mammographic-pathologic correlation. Semin Diagn Pathol. 1994, 11: 181-92.PubMedGoogle Scholar
  45. Kuerer HM, Albarracin CT, Yang WT, Cardiff RD, Brewster AM, Symmans WF, Hylton NM, Middleton LP, Krishnamurthy S, Perkins GH, Babiera G, Edgerton ME, Czerniecki BJ, Arun BK, Hortobagyi GN: Ductal carcinoma in situ: state of the science and roadmap to advance the field. J Clin Oncol. 2009, 27: 279-88. 10.1200/JCO.2008.18.3103.View ArticlePubMedGoogle Scholar
  46. Constantine C, Parhar P, Lymberis S, Fenton-Kerimian M, Han SC, Rosenstein BS, Formenti SC: Feasibility of accelerated whole-breast radiation in the treatment of patients with ductal carcinoma in situ of the breast. Clin Breast Cancer. 2008, 8: 269-74. 10.3816/CBC.2008.n.031.View ArticlePubMedGoogle Scholar
  47. Schiller DE, Le LW, Cho BC, Youngson BJ, McCready DR: Factors associated with negative margins of lumpectomy specimen: potential use in selecting patients for intraoperative radiotherapy. Ann Surg Oncol. 2008, 15: 833-42. 10.1245/s10434-007-9711-2.View ArticlePubMedGoogle Scholar
  48. Goldstein NS, Kestin L, Vicini F: Pathologic features of initial biopsy specimens associated with residual intraductal carcinoma on reexcision in patients with ductal carcinoma in situ of the breast referred for breast-conserving therapy. Am J Surg Pathol. 1999, 23: 1340-8. 10.1097/00000478-199911000-00004.View ArticlePubMedGoogle Scholar
  49. Goldstein NS, Kestin L, Vicini F: Intraductal carcinoma of the breast: pathologic features associated with local recurrence in patients treated with breast-conserving therapy. Am J Surg Pathol. 2000, 24: 1058-67. 10.1097/00000478-200008000-00003.View ArticlePubMedGoogle Scholar
  50. de Mascarel I, Bonichon F, MacGrogan G, de Lara CT, Avril A, Picot V, Durand M, Mauriac L, Trojani M, Coindre JM: Application of the van nuys prognostic index in a retrospective series of 367 ductal carcinomas in situ of the breast examined by serial macroscopic sectioning: practical considerations. Breast Cancer Res Treat. 2000, 61: 151-9. 10.1023/A:1006437902770.View ArticlePubMedGoogle Scholar
  51. Vicini FA, Kestin LL, Goldstein NS, Baglan KL, Pettinga JE, Martinez AA: Relationship between excision volume, margin status, and tumor size with the development of local recurrence in patients with ductal carcinoma-in-situ treated with breast-conserving therapy. J Surg Oncol. 2001, 76: 245-54. 10.1002/jso.1041.View ArticlePubMedGoogle Scholar
  52. O'Flynn EA, Morel JC, Gonzalez J, Dutt N, Evans D, Wasan R, Michell MJ: Prediction of the presence of invasive disease from the measurement of extent of malignant microcalcification on mammography and ductal carcinoma in situ grade at core biopsy. Clin Radiol. 2009, 64: 178-83. 10.1016/j.crad.2008.08.007.View ArticlePubMedGoogle Scholar
  53. Leikola J, Heikkilä P, Pamilo M, Salmenkivi K, Von Smitten K, Leidenius M: Predicting invasion in patients with DCIS in the preoperative percutaneous biopsy. Acta Oncol. 2007, 46: 798-802. 10.1080/02841860601128941.View ArticlePubMedGoogle Scholar
  54. Rutstein LA, Johnson RR, Poller WR, Dabbs D, Groblewski J, Rakitt T, Tsung A, Kirchner T, Sumkin J, Keenan D, Soran A, Ahrendt G, Falk JS: Predictors of residual invasive disease after core needle biopsy diagnosis of ductal carcinoma in situ. Breast J. 2007, 13: 251-7. 10.1111/j.1524-4741.2007.00418.x.View ArticlePubMedGoogle Scholar
  55. Yen TW, Hunt KK, Ross MI, Mirza NQ, Babiera GV, Meric-Bernstam F, Singletary SE, Symmans WF, Giordano SH, Feig BW, Ames FC, Kuerer HM: Predictors of invasive breast cancer in patients with an initial diagnosis of ductal carcinoma in situ: a guide to selective use of sentinel lymph node biopsy in management of ductal carcinoma in situ. J Am Coll Surg. 2005, 200: 516-26. 10.1016/j.jamcollsurg.2004.11.012.View ArticlePubMedGoogle Scholar
  56. Kettritz U, Rotter K, Schreer I, Murauer M, Schulz-Wendtland R, Peter D, Heywang-Köbrunner SH: Stereotactic vacuum-assisted breast biopsy in 2874 patients: a multicenter study. Cancer. 2004, 100: 245-51. 10.1002/cncr.11887.View ArticlePubMedGoogle Scholar
  57. Sakr R, Bezu C, Raoust I, Antoine M, Ettore F, Darcourt J, Kerrou K, Daraï E, Rouzier R, Uzan S: The sentinel lymph node procedure for patients with preoperative diagnosis of ductal carcinoma in situ: risk factors for unsuspected invasive disease and for metastatic sentinel lymph nodes. Int J Clin Pract. 2008, 62: 1730-5. 10.1111/j.1742-1241.2008.01867.x.View ArticlePubMedGoogle Scholar
  58. Bagnall MJ, Evans AJ, Wilson AR, Pinder SE, Denley H, Geraghty JG, Ellis IO: Predicting invasion in mammographically detected microcalcification. Clin Radiol. 2001, 56: 828-32. 10.1053/crad.2001.0779.View ArticlePubMedGoogle Scholar
  59. Maffuz A, Barroso-Bravo S, Nájera I, Zarco G, Alvarado-Cabrero I, Rodríguez-Cuevas SA: Tumor size as predictor of microinvasion, invasion, and axillary metastasis in ductal carcinoma in situ. J Exp Clin Cancer Res. 2006, 25: 223-7.PubMedGoogle Scholar
  60. Rakha EA, El-Sayed ME, Reed J, Lee AH, Evans AJ, Ellis IO: Screen-detected breast lesions with malignant needle core biopsy diagnoses and no malignancy identified in subsequent surgical excision specimens (potential false-positive diagnosis). Eur J Cancer. 2009, 45: 1162-7. 10.1016/j.ejca.2008.12.002.View ArticlePubMedGoogle Scholar
  61. van Deurzen CH, Hobbelink MG, van Hillegersberg R, van Diest PJ: Is there an indication for sentinel node biopsy in patients with ductal carcinoma in situ of the breast? A review. Eur J Cancer. 2007, 43: 993-1001. 10.1016/j.ejca.2007.01.010.View ArticlePubMedGoogle Scholar
  62. Ansari B, Ogston SA, Purdie CA, Adamson DJ, Brown DC, Thompson AM: Meta-analysis of sentinel node biopsy in ductal carcinoma in situ of the breast. Br J Surg. 2008, 95: 547-54. 10.1002/bjs.6162.View ArticlePubMedGoogle Scholar
  63. Polom K, Murawa D, Wasiewicz J, Nowakowski W, Murawa P: The role of sentinel node biopsy in ductal carcinoma in situ of the breast. Eur J Surg Oncol. 2009, 35: 43-7.View ArticlePubMedGoogle Scholar
  64. Tunon-de-Lara C, Giard S, Buttarelli M, Blanchot J, Classe JM, Baron M, Monnier B, Houvenaeghel G: Sentinel node procedure is warranted in ductal carcinoma in situ with high risk of occult invasive carcinoma and microinvasive carcinoma treated by mastectomy. Breast J. 2008, 14: 135-40. 10.1111/j.1524-4741.2007.00543.x.View ArticlePubMedGoogle Scholar
  65. Goyal A, Douglas-Jones A, Monypenny I, Sweetland H, Stevens G, Mansel RE: Is there a role of sentinel lymph node biopsy in ductal carcinoma in situ?: analysis of 587 cases. Breast Cancer Res Treat. 2006, 98: 311-4. 10.1007/s10549-006-9167-2.View ArticlePubMedGoogle Scholar
  66. Doyle B, Al-Mudhaffer M, Kennedy MM, O'Doherty A, Flanagan F, McDermot EW, Kerin MJ, Hill AD, Quinn CM: Sentinel lymph node biopsy in patients with a needle core biopsy diagnosis of DCIS - is it justified?. J Clin Pathol. 2009, 62: 534-8. 10.1136/jcp.2008.061457.View ArticlePubMedGoogle Scholar

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