A case of a dialysis-related renal tumor in a crossed fused ectopic kidney

Abstract

A 38-year-old male hemodialysis patient was referred to our department because of a renal mass (diameter: 3 cm), which was detected on follow-up ultrasonography. On the basis of the findings of contrast-enhanced computed tomography and magnetic resonance imaging, a crossed fused ectopic kidney and renal cell carcinoma were diagnosed. Radical nephrectomy was performed. The histopathological findings were suggestive of acquired cystic disease-associated renal cell carcinoma (pT1aN0M0G2>G3). A case involving a crossed fused ectopic kidney and a renal tumor is reported herein. In addition, the findings of a literature review of this topic are discussed.