[Retroperitoneal teratoma associated with primary neoplasm of the ovary. Presentation of a case]

The retroperitoneal teratomas are rare neoplasias that represent only 3.5% of all extragonadal teratomas. They generally appear in the first decade of life, and the incidence in adults is rare. We describe a rare case of extragodonal teratoma, not only because the patient is in the 7th decade of life, but also because of the localization and association of two epithelial cellular tumors of the ovary. We also describe the surgical and histopathological findings as well as an analysis of the frequence, clinical characteristics, diagnosis and treatment for this neoplasia.