Clinically undiagnosed prostate carcinoma metastatic to renal oncocytoma.

Abstract

Tumors-to-tumor metastasis is an uncommon occurrence and can be a source of great diagnostic difficulty, especially when the donor tumor is undiagnosed. Here we report a case of a kidney resected for a primary neoplasm (oncocytoma) that harbored metastases from a clinically undiagnosed prostatic adenocarcinoma. The presence of the poorly differentiated metastasis within an otherwise typical oncocytoma in the absence of metastases in the surrounding nonneoplastic renal parenchyma resulted in a diagnostic dilemma. To our knowledge, this is the first report of a case in the English literature of a clinically undiagnosed prostatic adenocarcinoma metastatic to a renal oncocytoma identified on examination of the resected renal neoplasm.

• Authors: Adam J Horn, Bari E Fritz, Chad A Lagrange, William W West, Subodh M Lele
• Journal: Case reports in urology (Case Rep Urol) Vol. 2012 Pg. 307813 ( 2012) ISSN: 2090-6978 [Electronic] United States
• PMID: 22754705 (Publication Type: Case Reports)