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Table 1 Clinicopathologic characteristics

From: Histopathological validation of safe margin for nephron-sparing surgery based on individual tumor growth pattern

Characteristic

Value

No. of patients

560

Age (years)

 Range

17–85

 Median

63.2

Sex

 Male

416 (74.3%)

 Female

144 (25.7%)

sRCC subtype

 Clear cell

480 (85.7%)

 Chromofobe

38 (6.8%)

 Papillary

26 (4.6%)

 Others

16 (2.9%)

Growth pattern

 SNP

438 (78.2%)

 MFP

58 (10.4%)

 IP

64 (11.4%)

pT stage

 1a

541 (96.6%)

 3a

19 (3.4%)

Fuhrman grade

 1

137 (24.5%)

 2

370 (66.1%)

 3

42 (7.5%)

 4

11 (1.9%)

PC

 Absent

48 (7.5%)

 Present

512 (92.5%)

  1. sRCC Small renal cell carcinoma, SNP A single nodular pattern, MFP A multinodular fusion pattern, IP An infiltration pattern, pT Pathologic tumor, PC Pseudocapsule