Table 1 Clinical and histopathological characteristics of the study cohort

Age, median; (range)

68; (30–83)

Men

28; (70)

Women

12; (30)

Benign tumors

10; (25)

Renal cysts

1; (2.5)

Angiomyolipoma

2; (5)

Oncocytoma

6; (15)

Cystic Nephroma

1; (2.5)

Tumor size (cm), median; (range)

2.5; (1.0-6.0)

Malignant tumors

30; (75)

Clear cell RCC

25; (62.5)

Papillary RCC

5; (12.5)

Tumor size (cm), median; (range)

4; (1.3-12.0)

Tumor differentiation

G1

6; (20)

G2

16; (53.3)

G3

8; (26.7)

Venous invasion (in cases of potentially invasive tumors)

6; (16)

Distant metastasis (in cases of potentially invasive tumors)

1; (3)

Type of surgical intervention

Open partial nephrectomy

24; (60)

Open nephrectomy

6; (15)

Transperitoneal nephrectomy

4; (10)

Laparoscopic nephrectomy

3; (7.5)

Laparoscopic partial nephrectomy

2; (5)

CT targeted biopsy

1; (2.5)