title: Perirenal malignant schwannoma: a case report and review of the literature.
mesh_terms: D000230:Adenocarcinoma / Q000648:ultrastructure; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D009442:Neurilemmoma / Q000648:ultrastructure*; D012186:Retroperitoneal Neoplasms / Q000648:ultrastructure*