%0 Journal Article %T Retroperitoneal PEComa: Case report and review of literature %A Eric Singer %A Michael Johnson %A Susanna Yau %J Archive of "Urology Case Reports". %D 2018 %R 10.1016/j.eucr.2018.03.012 %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5991347/