A malignant mixed germ cell tumor originating from the pituitary gland with a suprasellar extension: a case report.

A case of an intracranial tumor in a 26-year old woman with symptoms of hypopituitarism, and visual disturbance is presented. The primary site has been verified by the clinical presentations and the hormonal and the neurological studies as originating from the pituitary gland with extension to the suprasellar area. Histologically, the tumor contains elements that demand its interpretation as a malignant teratoma. In a tumor marker study, the aFP level was elevated, suggestive of an endodermal sinus tumor component. We report this case as a mixed germ cell tumor originating from the pituitary gland with a suprasellar extension and a malignant transformation from a benign component.