title: Extragonadal presentations of germ cell tumours.
abstract: This study reviews our experience over the past 25 years with unusual presentations of germ cell tumours and emphasises the need to consider the diagnosis of germ cell malignancy in any male patient who presents under the age of 60 years with a retroperitoneal or mediastinal tumour reported to be an "undifferentiated carcinoma" of apparently unknown origin.
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D008479:Mediastinal Neoplasms / Q000175:diagnosis* / Q000628:therapy; D008875:Middle Aged; D009373:Neoplasms, Germ Cell and Embryonal / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy