Table 1 Clinicopathological features of PRNRP, PRCC1, and PRCC2.

From: Recurrent KRAS mutations identified in papillary renal neoplasm with reverse polarity—a comparative study with papillary renal cell carcinoma

 

PRNRP (n, 30)

PRCC1 (n, 23)

PRCC2 (n, 26)

PRNRP vs. PRCC1

p value

PRNRP vs. PRCC2

p value

Age (years, mean ± SD)

60.6 ± 8.2

58.1 ± 9.7

62.5 ± 11.1

0.314

0.474

Sex

   

0.602

0.253

 Female

11 (36.7%)

6 (26.1%)

5 (19.2%)

  

 Male

19 (63.3%)

17 (73.9%)

21 (80.8%)

  

Tumor size (cm)

1.8 ± 0.9

5.4 ± 4.9

5.0 ± 3.8

0.002

< 0.001

Multiplicity

   

0.358

0.087

 1

30 (100.0%)

21 (91.3%)

22 (84.6%)

  

  2

0 (0.0%)

2 (8.7%)

4 (15.4%)

  

Treatment

   

0.001

0.003

 Partial nephrectomy

29 (96.7%)

13 (56.5%)

16 (61.5%)

  

 Radical nephrectomy

1 (3.3%)

10 (43.5%)

10 (38.5%)

  

Pathologic T stage

   

0.006

0.007

 T1a

30 (100.0%)

15 (65.2%)

16 (61.5%)

  

 T1b

0 (0.0%)

4 (17.4%)

4 (15.4%)

  

 T2

0 (0.0%)

2 (8.7%)

2 (7.6%)

  

 T3a

0 (0.0%)

2 (8.7%)

4 (15.4%)

  

Survival

   

0.593

0.017

 Alive

28 (93.3%)

23 (100%)

17 (65.4%)

  

 Dead of disease

0 (0.0%)

0 (0.0%)

5 (19.2%)

  

 Dead of other causes

2 (6.7%)

0 (0.0%)

4 (15.4%)

  

Follow up (months)

54.6 ± 47.0

47.9 ± 38.0

45.5 ± 32.5

0.578

0.409

  1. Values are presented as n (%), unless otherwise indicated
  2. PRNRP papillary renal neoplasm with reverse polarity, PRCC1 papillary renal cell carcinoma type 1, PRCC2 papillary renal cell carcinoma type 2, SD standard deviation