Table 2.

Tumor Size and Histologic Type

Pathologic Diagnosis	n (%)	Diameter (mm, Mean ± SD)
Clear Cell RCC	55 (50.46)	22.4 ± 8.18
▪ Low-grade Clear Cell RCC	49 (44.95)	21.51 ± 6.45
▪ High-grade Clear Cell RCC	6 (5.50)	29.67 ± 9.22
Papillary RCC	25 (22.94)	22.94 ± 7.33
▪ Type 1	20 (18.35)	25.15 ± 8.69
▪ Type 2	5 (4.59)	25.00 ± 4.30
Chromophobe RCC	7 (6.42)	23.71 ± 8.87
Oncocytoma	6 (5.50)	19.83 ± 4.26
Minimal-Fat AML	6 (5.50)	19.33 ± 8.16
Other	10 (9.17)	21.60 ± 8.04
▪ Clear Cell Papillary RCC	3 (2.75)	22.95 ± 7.30
▪ Multilocular Benign Cyst	2 (1.83)	21.67 ± 8.31
▪ Cystic Nephroma	2 (1.83)	24.60 ± 6.84
▪ Metanephric Adenoma	1 (0.92)	28
▪ Tuberous Sclerosis-RCC	1 (0.92)	22
▪ Carcinoid	1 (0.92)	14
Total	109 (100%)	22.72 ± 7.42

Note – RCC, renal cell carcinoma; AML, angiomyolipoma; SD, standard deviation.