title: Lipomatous pleomorphic adenoma of the ceruminous gland.
abstract: A case of lipomatous pleomorphic adenoma in the ceruminous gland is reported. A 69-year-old Japanese woman presented with a mass in the posterior wall of the cartilaginous external auditory canal. Light microscopic examination revealed a well-circumscribed tumor composed of tubular structures with apocrine secretion and ceroid deposition, extensive mature adipocytes, and spindle-shaped myoepithelial cells in the myxoid and fibrous stroma. This case demonstrates the peculiar location of a lipomatous pleomorphic adenoma in the external auditory canal.
authors.affiliation: Department of Pathology, School of Medicine, Osaka Medical College, Osaka, Japan. pa2020@art.osaka-med.ac.jp
authors.forename: Hiroko
authors.initials: H
authors.lastname: Kuwabara
authors.forename: Shin-Ichi
authors.initials: S
authors.lastname: Haginomori
authors.forename: Atsuko
authors.initials: A
authors.lastname: Takamaki
authors.forename: Kanako
authors.initials: K
authors.lastname: Ito
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Takenaka
authors.forename: Yoshitaka
authors.initials: Y
authors.lastname: Kurisu
authors.forename: Motomu
authors.initials: M
authors.lastname: Tsuji
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Mori
mesh_terms: D008949:Adenoma, Pleomorphic / Q000175:diagnosis* / Q000473:pathology*; D000368:Aged; D001050:Apocrine Glands; D002571:Cerumen; D003937:Diagnosis, Differential; D004424:Ear Canal; D004428:Ear Neoplasms / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D006801:Humans; D013544:Sweat Gland Neoplasms / Q000175:diagnosis* / Q000473:pathology; D016896:Treatment Outcome