title: Pseudotumor cerebri due to partial obstruction of the sigmoid sinus by a cholesteatoma.
abstract: A 62-year-old man with pseudotumor cerebri (PTC) syndrome was discovered to have a cholesteatoma of the left mastoid. The mass indented the sigmoid sinus without occluding it. The PTC resolved postoperatively. To our knowledge, PTC has not been previously reported in association with a cholesteatoma. Additionally, this case demonstrated that a partial obstruction of the venous drainage of the brain may be sufficient to increase intracranial pressure.
mesh_terms: D002781:Cholesteatoma / Q000150:complications*; D003251:Constriction, Pathologic / Q000209:etiology; D003392:Cranial Sinuses; D006801:Humans; D008297:Male; D008875:Middle Aged; D011559:Pseudotumor Cerebri / Q000209:etiology*; D012888:Skull Neoplasms / Q000150:complications*