Material and Method
Data of 4823 patients who underwent radical or partial nephrectomy for
renal tumors during the period from 2000 to 2019 was obtained from
Turkish Urooncology Association-Urologic Cancer Database-Kidney (TUOA
UroCaD-K) by using Research Electronic Data Capture (REDCap) (7,8) in
Turkey. Of 4823 patients, 3309 RCC patients were found to have complete
radiological and histopathological data and were included to this study.
Exclusion criteria were incomplete radiological and/or histopathological
data, other malignant or benign renal tumors except RCC, incomplete
demographic data, patients less than 18 years of age and patients who
were performed other procedures without surgical resection such as
radiofrequency ablation and microwave ablation. Radiological and
pathological stages of the patients were recorded according to TNM 2017
classification system. Radiological evaluations were made with CT and/or
MRI.