title: MRI of intranasal pleomorphic adenoma.
abstract: A pleomorphic adenoma in the nasal cavity constitutes a rarity. A 48-year-old woman presented with intranasal pleomorphic adenoma revealed by unilateral continuous obstruction and occasional epistaxis. Nasal endoscopy showed a mucosa-covered and opalescent polypoidal mass arising from the left nasal septum. Unlike cases affecting the major salivary gland, magnetic resonance image (MRI) revealed that the mass showed a low signal intensity on T1-weighted image and a heterogeneous, intermediate signal intensity on T2-weighted image. MRI findings can aid in diagnosis and help exclude the possibility of other neoplasms that occur at this site.
authors.affiliation: Department of Otolaryngology, University of Toyama, Toyama, Japan. hfushiki@ms.toyama-mpu.ac.jp
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Fushiki
authors.forename: Makoto
authors.initials: M
authors.lastname: Morijiri
authors.forename: Motoyoshi
authors.initials: M
authors.lastname: Maruyama
authors.forename: Hitomi
authors.initials: H
authors.lastname: Motoshima
authors.forename: Yukio
authors.initials: Y
authors.lastname: Watanabe
mesh_terms: D008949:Adenoma, Pleomorphic / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004724:Endoscopy; D004844:Epistaxis / Q000175:diagnosis / Q000209:etiology; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009296:Nasal Cavity / Q000473:pathology; D015508:Nasal Obstruction / Q000175:diagnosis / Q000209:etiology; D009300:Nasal Septum / Q000473:pathology; D009669:Nose Neoplasms / Q000175:diagnosis*