%0 Journal Article %T Renal Oncocytoma and Retroperitoneal Ancient Schwannoma: A Benign Mimic of Metastatic Renal Cell Carcinoma %A Ali H. Houjaij %A Daniel C. Wang %A Oussama M. Darwish %A Tyler J. Maiers %J Archive of "Case Reports in Urology". %D 2019 %R 10.1155/2019/2561289 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6402212/