title: Epidermoid cyst of the skull with nonpulsatile tinnitus.
abstract: We report an intradiploic epidermoid cyst of the skull responsible for transverse sinus compression and presenting with nonpulsatile tinnitus. Plain films and CT both demonstrated the tumour. Cerebral angiography showed best the degree of narrowing of the right transverse sinus, accompanied with turbulent flow probably leading to tinnitus. MRI demonstrated accurately both the tumour and the dural sinus compression. The tumour was totally removed, cranioplasty was performed, and the patient was discharged free of symptoms.
authors.affiliation: Department of Radiology, University Hospital of Geneva, Switzerland.
authors.forename: M
authors.initials: M
authors.lastname: Piotin
authors.forename: P
authors.initials: P
authors.lastname: Gailloud
authors.forename: A
authors.initials: A
authors.lastname: Reverdin
authors.forename: P A
authors.initials: PA
authors.lastname: Schneider
authors.forename: G
authors.initials: G
authors.lastname: Pizzolato
authors.forename: D A
authors.initials: DA
authors.lastname: Rüfenacht
mesh_terms: D000328:Adult; D003251:Constriction, Pathologic / Q000209:etiology; D003392:Cranial Sinuses / Q000473:pathology; D003952:Diagnostic Imaging; D004814:Epidermal Cyst / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008297:Male; D009777:Occipital Bone; D013701:Temporal Bone; D014012:Tinnitus / Q000209:etiology*