title: Craniectomy for a bilobed dermoid cyst in the temporal fossa and greater wing of the sphenoid bone.
abstract: Dermoid cysts are common periorbital lesions. They usually occur near the superolateral orbital rim, indenting but not extending within the bony outer table. We present an unusual case of a dumbbell-shaped dermoid cyst underlying the temporalis muscle with extension into the lateral wing of the greater sphenoid bone, approaching the optic canal. The cyst was successfully removed en bloc via a small skull base craniectomy without spillage of cyst contents. The patient recovered well without neurological or visual sequelae.
authors.affiliation: Department of Neurological Surgery, Oregon Health & Science University, Portland, Oreg. 97239, USA.
authors.forename: Dipti
authors.initials: D
authors.lastname: Nevrekar
authors.forename: Emun
authors.initials: E
authors.lastname: Abdu
authors.forename: Nathan R
authors.initials: NR
authors.lastname: Selden
mesh_terms: D002648:Child; D003399:Craniotomy; D003884:Dermoid Cyst / Q000473:pathology / Q000601:surgery*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D012888:Skull Neoplasms / Q000473:pathology / Q000601:surgery*; D013100:Sphenoid Bone / Q000473:pathology / Q000601:surgery*; D013701:Temporal Bone