title: Primary retroperitoneal seminoma without gonadal involvement: a report of 3 cases.
mesh_terms: D000328:Adult; D000792:Angiography; D002648:Child; D004407:Dysgerminoma / Q000000981:diagnostic imaging / Q000532:radiotherapy / Q000601:surgery; D006801:Humans; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging / Q000532:radiotherapy / Q000601:surgery; D013737:Testis; D014567:Urography