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Table 1 Demographics and pathologic features of the 98 renal cell carcinoma cases with prior biopsy

From: Needle tract seeding in renal tumor biopsies: experience from a single institution

  Papillary renal cell carcinoma Clear cell renal cell carcinoma Clear cell papillary renal cell carcinoma Chromophobe renal cell carcinoma
Number of cases 28 63 3 4
Age (mean ± SD) 62.5 ± 11.5 61.1 ± 12.0 60.0 ± 5.6 44.5 ± 6.5
Sex (Male/Female) 22/6 36/27 2/1 1/3
Tumor staginga     
pT1a 17 35 3 2
pT1b 4 16 0 1
pT2a 2 1 0 1
pT3a 5 10 0 0
pT3b 0 1 0 0
Nucleolar grade (ISUP)     
1 1 6 Not applicable Not applicable
2 11 38
3 7 18
4 0 1
Lymphovascular invasion 1 4 0 0
Lymph node involvement 1 1 0 0
Distant metastasis 0 1 0 0
  1. a The American Joint Committee on Cancer (AJCC) cancer staging, 8th edition for Tumor