title: A fatal invasive prolactin-producing pituitary adenoma causing hypoglossal nerve paresis.
abstract: A nonmetastasizing, prolactin-producing pituitary adenoma extensively invaded a 53-year-old woman's skull base from the orbits to the foramen magnum. It produced presenting findings of bilateral cranial nerve XII palsy. Fatal intracranial hemorrhage followed biopsy of the tumor.
mesh_terms: D000236:Adenoma / Q000378:metabolism* / Q000473:pathology; D005260:Female; D006801:Humans; D007002:Hypoglossal Nerve; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D010243:Paralysis / Q000209:etiology*; D010911:Pituitary Neoplasms / Q000378:metabolism* / Q000473:pathology; D011388:Prolactin / Q000378:metabolism*
chemical_list: D011388:Prolactin