Table 2 Clinical, MRI and pathologic characteristics of the 72 cases analysed (unless otherwise specified)

Mean (median) age (years)

66.52 (68)

Mean (median) tumour diameter (mm)

40.56 (32)

Number of tumours per patient (% of total 75 cases)

         1

57 (76%)

         2

4 (10.67%)

         > 2

3 (13.33%)

Sex Male:Female ratio of total 75 cases (% Male)

38:37 (50.67%)

Equivocal or suspicious for malignancy on MRI (%)

11.1%

         Signal on T2 (mean/median(range))

1.03/0.96 (0.67–1.54)

         Micro Fat detected (%)

37.5

         Median enhancement ratio- Corticomedullary phase (%)

                       Clear cell RCC

206

                       Papillary RCC

32

                       Chromophobe RCC

110

Malignancy on final histopathology (% total)

70.9%

         Clear cell RCC

35 (48.6%)

         Papillary RCC

11 (15.3%)

         Chromophobe RCC

5 (6.9%)

Benign on final histopathology (%)

29.1%

          AML

10 (13.9%)

          Oncocytoma

11 (15.3%)