title: Pathologic quiz case 1. Malignant peripheral nerve sheath tumor of the ethmoidal sinus.
authors.forename: T M
authors.initials: TM
authors.lastname: Mosharrafa
authors.forename: R B
authors.initials: RB
authors.lastname: Kuppersmith
authors.forename: J P
authors.initials: JP
authors.lastname: Porter
authors.forename: D T
authors.initials: DT
authors.lastname: Donovan
mesh_terms: D000328:Adult; D005005:Ethmoid Sinus / Q000473:pathology*; D005260:Female; D006801:Humans; D009442:Neurilemmoma / Q000473:pathology*; D010255:Paranasal Sinus Neoplasms / Q000473:pathology*; D010524:Peripheral Nervous System Neoplasms / Q000473:pathology*