Abstract:

Objective: The aim of this study is to compare the clinical features of the patients with a benign pathological report who underwent radical or partial nephrectomy with a preliminary diagnosis of renal mass with the malignant ones. Material and Methods: Between January 2001 and April 2013, 406 patients who underwent surgery in our clinic with a preliminary diagnosis of kidney tumor were evaluated retrospectively. Two groups of 54 patients with a benign diagnosis Group 1 and 352 patients with a malignant diagnosis Group 2 were formed based on histopathological examination results. For pathological staging 2010 TNM staging system and for histological subtype classification 2004 WHO classification were used. The longest diameter from those measured from pathological specimens were presumed as tumor you. All patients were reviewed according to age, sex, symptoms at diagnosis, multifocality, tumor size and histological subtypes. Results: The average age of the patients was 58.3±5.29 46-58 in the benign group, whereas 63.5±8.17 42-83 in the malignant group. 10 patients in the benign group 18% were while the remaining 44 82% patients were detected incidentally. In the malignant group, 277 79% of patients were applied symptomatically and 75 21% patients were detected incidentally. Multifocality was observed in 2 patients in Group 1 0.03% and in 76 patients in Group 2 21% . In group 1 and group 2, the average tumor diameter were 3.8 cm and 6.4 cm respectively. Statistically significant difference was detected in the presence of symptoms at diagnosis, multifocality and tumor size between two groups of p

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