title: [Giant intradiploic infratentorial epidermoid cyst].
abstract: Epidermoid cysts are benign, uncommon lesions (1% of all intracranial tumors). Their localization is intradiploic in 25% of cases, and exceptionally subtentorial. We report here a rare case of giant intradiploic infratentorial epidermoid cyst. A 74-year old patient presented with recent diplopia and sindrome cerebellar. CT scan and MR imaging revealed a giant osteolytic extradural lesion of the posterior fossa (5.2 cm x 3.8 cm) with a small area of peripheral enhancement after contrast injection. Retrosigmoid suboccipital craniectomy allowed a satisfactory removal of the tumor, followed by an acrylic cranioplasty. The outcome was good. Neuropathological examination confirmed an epidermoid cyst. We review the literature and discuss our case.
authors.affiliation: Servicio de Neurocirugía, Centro Hospitalario Universitario de Limoges, Hospital Universitario Dupuytren, Universidad de Limoges.
authors.forename: F
authors.initials: F
authors.lastname: Alberione
authors.forename: F
authors.initials: F
authors.lastname: Caire
authors.forename: D
authors.initials: D
authors.lastname: Fischer-Lokou
authors.forename: M
authors.initials: M
authors.lastname: Gueye
authors.forename: J J
authors.initials: JJ
authors.lastname: Moreau
mesh_terms: D000368:Aged; D001855:Bone Marrow Diseases / Q000150:complications / Q000601:surgery*; D018786:Bone Substitutes; D002114:Calcinosis / Q000209:etiology; D002524:Cerebellar Ataxia / Q000209:etiology*; D003399:Craniotomy; D004172:Diplopia / Q000209:etiology*; D004388:Dura Mater / Q000601:surgery; D004814:Epidermal Cyst / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009777:Occipital Bone / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D010014:Osteolysis / Q000209:etiology; D014057:Tomography, X-Ray Computed
chemical_list: D018786:Bone Substitutes