Table 1. Patient Characteristics.

Characteristics	No.(%)	Range
Median age (year)	54.6	38–76
Sex
Male	13(72.2%)
Female	5(27.8%)
Stage
I	3(16.7%)
II	2(11.1%)
III	5(27.8%)
IV	8(44.4%)
Local Advanced	11(61.1%)
Metastatic RCC	7(38.9%)
Pathology
Clear Cell	15(83.3%)
Chromphobe	1(5.6%)
Other(no classification)	2(11.1%)
Median duration of therapy (day)	96	30–278
Median time off treatment prior to surgery (day)	12	7–30