title: Adenoid cystic carcinoma of the external auditory canal: correlation between histological features and MRI appearances.
abstract: A rare case of adenoid cystic carcinoma of the external auditory canal with magnetic resonance imaging appearances is reported. Both T1 weighted and T2 weighted MR images showed the tumour as a hypointense mass, although there was marked contrast enhancement. Microscopic examination of the resected tumour showed a preponderance of solid tumour cell nests. According to previous reports, these pathological and radiological findings indicate a poor prognosis.
authors.affiliation: Department of Radiology, Oita Prefectural Hospital, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Aikawa
authors.forename: K
authors.initials: K
authors.lastname: Tomonari
authors.forename: Y
authors.initials: Y
authors.lastname: Okino
authors.forename: F
authors.initials: F
authors.lastname: Hori
authors.forename: T
authors.initials: T
authors.lastname: Ueyama
authors.forename: S
authors.initials: S
authors.lastname: Suenaga
authors.forename: J
authors.initials: J
authors.lastname: Bundo
authors.forename: K
authors.initials: K
authors.lastname: Tsuji
mesh_terms: D000368:Aged; D003528:Carcinoma, Adenoid Cystic / Q000175:diagnosis*; D004424:Ear Canal; D004428:Ear Neoplasms / Q000175:diagnosis*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging