Renal oncocytoma surgery

Renal oncocytoma Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Homa Najafi, M.D.[2] Shanshan Cen, M.D. [3]

Overview

Surgery is the mainstay of treatment for renal oncocytoma. Although the nature of renal oncocytoma is benign and the prognosis is excellent, since the definite diagnosis can not be obtained before operation, surgical resection is a choice of treatment. Best option for surgery differs based on the mass characteristics, partial nephrectomy is done in polar lesions smaller than 4 cm in a normal contralateral kidney while, large solid renal masses which destroy most part of renal tissue or patients who have not candidate for nephron-sparing surgery are reserved for total nephrectomy.

Surgery

Surgery is the mainstay of treatment for renal oncocytoma. Although the nature of renal oncocytoma is benign and the prognosis is excellent, since the definite diagnosis can not be obtained before operation, surgical resection is a choice of treatment.

There are some debate in choosing the best option of surgery for these patients, although the recommendations are:

1. Partial nephrectomy:
   • In a normal contralateral kidney
   • Polar lesions smaller than 4 cm in size
2. Nephrectomy:
   • Large solid renal masses which destroys most part of the renal tissue
   • The patient who has not candidate for nephron-sparing surgery