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Table 2 Clinical characteristics of 94 prostate cancer patients with rectal involvement (RI)

From: Factors associated with the survival of prostate cancer patients with rectal involvement

Clinical characteristics

Synchronous rectal involvement at first cancer diagnosis

Metachronous diagnosis of rectal involvement

Total

(n = 63)

(n = 31)

(n = 94)

Age at rectal involvement

72(57-86)(63)

75(47-94)(27)

72.04(47-94)(90)

PSA at rectal involvement(ng/ml)#

113(3.9-7650)

32.75(0.008-1173)

463.10(0.008-7650)

Interval between primary tumor diagnosis and RI(months) & Race

0

40(6-216)

10.5(0-216)

Japan

46

16

62

USA

4

7

11

China

4

1

5

Brazil

2

0

2

France

0

1

1

Qatar

1

0

1

Pathological grade of RI

   

well differentiated

2

0

2

moderately differentiated

10

2

12

poorly differentiated

43

20

63

ND

8

9

17

Histology of prostate cancer RI

   

Prostate adenocarcinoma

61

29

90

Mixed type

4

2

6

Tumor extent at diagnosis of RI

   

RI only

20

5

25(

Extrarectal metastases

28

16

44

ND

15

10

25

Prior therapy

   

Hormonal therapy

0

28

28

Initial prostatectomy or radical radiotherapy

0

7

7

TURP

0

4

4

Type of rectal involvement

   

I

7

2

9

II

34

10

44

III

8

4

12

IV

3

8

11

ND

12

6

18

Clinical symptoms

   

Dysuria

14

4

18

Dyschezia

47

17

64

Hydronephrosis

14

3

17

Rectum bleeding

14

9

23

bowl obstruction

5

3

8

Misdiagnosized before therapy*

18

3

21

Treatment modalities after diagnosis of RI

   

colostomy

9

10

19

TPE

11

1

12

RR

6

3

9

RT

9

4

13

HT

63

3

66

chemotherapy

0

3

3

TPE + HT@

12

0

12

(RR or RT or TURP) + HT

12

0

12

  1. Values are given as median (min-max) or absolute numbers (number of patients).
  2. ND, not documented; RI, rectal involvement; TURP, transurethral resection; TPE, HT, hormone therapy; RT, radiotherapy; RR, rectum resection
  3. # PSA at rectal involvement (ng/ml) were available in 38 patients with synchronous and 16 patients with metachronous diagnosis.
  4. & Interval between primary tumor diagnosis and rectal involvement were available in 25 patients.
  5. *Before therapy, patients were misdiagnosized as rectal cancer, concomitant rectal and prostate cancer, and bladder cancer in 16, 3 and 2 patients respectively.
  6. @ 4 patients were given neoadjuvant HT + TPE + adjuvant HT
  7. “Mixed type” means prostate adenocarcinoma mixed with signet ring cell or ductal adenocarcinoma or papillary carcinoma.