title: [A case of testicular tumor with uncommon clinical course: testicular lesion that was initially not palpable led to a wrong diagnosis of huge retroperitoneal hematoma due to trauma].
abstract: A case of testicular tumor with uncommon clinical course is presented. Although the patient underwent abdominal trauma and was diagnosed as having retroperitoneal hematoma, a retroperitoneal bulky tumor was revealed at surgery. After that left orchiectomy was performed because the testicular swelling gradually developed. The retroperitoneal tumor was confirmed to be a secondary lesion metastasized from left testicular carcinoma.
mesh_terms: D000007:Abdominal Injuries; D000328:Adult; D003937:Diagnosis, Differential; D006406:Hematoma / Q000175:diagnosis*; D006801:Humans; D008297:Male; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000556:secondary; D013724:Teratoma / Q000175:diagnosis* / Q000556:secondary; D013736:Testicular Neoplasms / Q000175:diagnosis* / Q000473:pathology