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Table 2 Histological characteristics of individual tumor foci from 762 radical prostatectomy specimens

From: Histological characteristics of the largest and secondary tumors in radical prostatectomy specimens and implications for focal therapy

Tumor type

Total

GS ≥7

GS ≤6

Volume ≥ 0.5 mL

ECE

SVI

N

%

N

%

N

%

N

%

N

%

Unifocal

301

269

89.4

32

10.6

254

84.4

59

19.6

46

15.2

Multifocal

 Primary tumors

461

384

83.3

77

16.7

371

80.5

69

14.9

23

4.9

 Secondary tumors

686

250 (166)a

36.4 (24.2)a

436

63.6

122

17.8

5

0.7

0

0

Total

1448

903

 

545

 

747

 

133

 

69

 
  1. ECE = extracapsular extension, GS = Gleason score, SVI = seminal vesicle invasion
  2. aTumor with GS ≥7 and volume < 0.5 mL
  3. The primary tumor was defined as the largest tumor as measured by volume, without considering its Gleason score. Secondary tumors were defined as all tumors that were smaller than the primary tumor