RENAL ONCOCYTOMA OF THE NATIVE KIDNEY AFTER RENAL-TRANSPLANTATION

Patients with acquired cystic kidney disease (ACKD) are at an increase d risk of renal neoplasms, Frequent tumors are adenomas and renal cell carcinomas, However, renal oncocytomas may occur in patients with ACK D, Little is known about oncocytomas of the native kidney following re nal transplantation, By means of B scan ultrasonography, a solid and e cho-inhomogeneous renal mass was incidentically observed in the right native kidney of a 28-year-old female patient with ACKD 4 years follow ing renal transplantation. A nephrectomy was performed. The histologic al examination revealed a renal oncocytoma, The increased prevalence o f neoplasms in the case of ACKD and following renal transplantation re quires careful monitoring of the patients concerned, In very rare case s a renal oncocytoma may develop in the native kidney after renal tran splantation.