title: A case of polyorchidism with testicular teratoma.
abstract: A patient with duplication of the testis who presented initially with torsion of a right inguinal testis is described. Subsequently, a malignant teratoma of the trophoblastic type (choriocarcinoma) developed in the scortal testis on the right side. This scrotal testis was impalpable initially but a normal testis was present on the left side. The patient died of cerebral and pulmonary metastases of the teratoma.
mesh_terms: D002648:Child; D002822:Choriocarcinoma / Q000150:complications*; D006801:Humans; D008297:Male; D013086:Spermatic Cord Torsion / Q000150:complications; D013724:Teratoma / Q000150:complications*; D013736:Testicular Neoplasms / Q000150:complications*; D013737:Testis / Q000002:abnormalities*