title: Interdural giant dermoid cyst of the petrous apex.
abstract: Dermoid cysts account for less than 1% of all intracranial neoplasms and these are principally situated close to the midline. Those located at the petrous apex are generally in the intradural, and less frequently in the interdural, compartment. We report a 37-year-old woman with a giant interdural dermoid cyst of the petrous apex, associated with erosion of the middle fossa floor, and review the relationships of these dysembryogenic lesions, the dura mater and the neurovascular structures of this complex anatomical region, along with the relevant literature.
authors.affiliation: Institute of Neurosurgery, Catholic University School of Medicine, Largo Agostino Gemelli 8, 00168 Rome, Italy. cropcircle.2000@virgilio.it
authors.forename: Carmelo Lucio
authors.initials: CL
authors.lastname: Sturiale
authors.forename: Annunziato
authors.initials: A
authors.lastname: Mangiola
authors.forename: Angelo
authors.initials: A
authors.lastname: Pompucci
authors.forename: Manuela
authors.initials: M
authors.lastname: D'Ercole
authors.forename: Licia
authors.initials: L
authors.lastname: Di Muro
authors.forename: Carmelo
authors.initials: C
authors.lastname: Anile
mesh_terms: D000328:Adult; D003884:Dermoid Cyst / Q000473:pathology* / Q000601:surgery*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D010579:Petrous Bone / Q000473:pathology* / Q000601:surgery; D011183:Postoperative Complications; D019292:Skull Base Neoplasms / Q000473:pathology* / Q000601:surgery; D014057:Tomography, X-Ray Computed / Q000379:methods