Table 1.

Baseline characteristics of the patients in the study

Patient demography	Values
Number of masses	21
Mean age, years (range)	63.7 ± 10.2 (39–74)
Gender, n (%)
Male	16 (76.2%)
Female	5 (23.8%)
Tumor site, n (%)
Right	9 (42.8%)
Left	12 (57.2%)
Mean maximum diameter, cm (range)	2.4 ± 0.9 (1.5–5.0)
Location, n (%)
Endophytic	6 (28.6%)
Exophytic	13 (47.6%)
Mixed	2 (9.4%)
Surgical procedure
Microwave	11 (52.4%)
Clamping	10 (47.6%)
Mean warm ischemic time, minutes (range)
Microwave	24 (17–34)
Clamping	0
Benign total, n (%)	2 (9.5%)
Angiomyolipoma	2 (9.5%)
Malignancy total, n (%)	19 (90.5%)
Clear cell	17 (81.1%)
Papillary	1 (4.7%)
Chromophobe	1 (4.7%)