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Table 2 Pathological characteristics of patients with second primary renal cell carcinoma (2nd RCC) and first primary renal cell carcinoma (1st RCC)

From: A comprehensive analysis of renal cell carcinoma as first and second primary cancers

  2nd RCC 1st RCC p value
Pathological type Clear cell RCC 98 (86.7%) 630 (84.1%) 0.98
Papillary RCC 6 (5.3%) 44 (5.9%)
Chromophobe RCC 5 (4.4%) 51 (6.8%)
Translocation RCC 1 (0.88%) 4 (0.53%)
Sarcomatoid variants of RCC 1 (0.88%) 3 (0.4%)
Renal medullary carcinoma 0 1 (0.13%)
Renal collecting duct carcinoma 0 1 (0.13%)
Mucinous tubular and spindle cell carcinoma 0 1 (0.13%)
Unclassified RCC 2 (1.8%) 14 (1.9%)
Single/multiple 113/0 744/5 0.38
Pathological grade I 16 (22.9%) 104 (24.9%) 0.45
II 44 (62.9%) 236 (56.6%)
III 10 (14.3%) 69 (16.5%)
IV 0 8 (1.9%)
Pathological stage T1 97 (91.5%) 595 (79.4%) <0.001
T2 2 (1.9%) 86 (11.5%)
T3 7 (6.6%) 50 (6.7%)
T4 0 7 (0.9%)
TxN1 0 11 (1.5%)
  1. RCC renal cell carcinoma