Renal Oncocytoma in a Patient with Non-Hodgkin Lymphoma in Remission Remisyondaki Non-Hodgkin Lenfomali Hastada Renal Onkositoma

SUMMARY Renal oncocytoma is a relatively rare neoplasm of the kidney. A few reports have described renal oncocytomas in patients with previously diagnosed non-Hodgkin lymphoma (NHL). In the present report, a NHL patient diagnosed as renal oncocytoma is presented. A 36-year-old female patient applied to our clinic with complaints of side pain and dysuria for two days. She had been diagnosed with NHL 15 years ago and had received eight cycles of chemotherapy. She was in remission for the last 10 years. Her physical examination was normal. Both renal ultrasonography and abdominal tomography demonstrated a solid mass, measuring 2.5x3 cm, in the right kidney. A Tru-cut biopsy was performed, and the pathological examination of the biopsy specimen revealed oncocytoma. As renal functions were normal and the tumor size remained stable, surgical intervention was not considered, and a conservative approach was used. Renal oncocytoma is a benign solitary neoplasm of the kidney. Local invasion and metastases have been reported in a few cases in the literature. The patients with renal oncocytoma can apply with nonspecific complaints. Unless the patients are symp tomatic, or the tumor shows a rapid growth, these patients should be monitored under conservative therapy.