Microscopic testicular teratoma with chorionepitheliomatous metastases

Case 1-2000

“…[34][35][36][37][38][39][40][41] Intratubular germ-cell neoplasia includes an unclassified form in which cells indistinguishable from seminoma cells are scattered along the tubular basement membranes, intratubular seminoma, intratubular embryonal carcinoma, 42 and microinvasive seminoma. [43][44][45][46] Finally, in some patients, a germ-cell tumor has been detected in an apparently normal testis on clinical examination 5 months to 14 years after the treatment of a retroperitoneal germ-cell tumor. 27,37 Friedman and Moore 30 reported that of 29 "primary" retroperitoneal germ-cell tumors evaluated by the Armed Forces Institute of Pathology between whether the mass also had a nonseminomatous component.…”