title: Cholesterol granuloma of the external ear canal: A rare presentation.
abstract: Almost all aural cholesterol granulomas develop in the mucosa of the middle ear. We describe the case of a 14-year-old girl who presented with an asymptomatic, nontender, dark-blue, cystic lesion in the posteroinferior portion of the left ear canal. The mass was excised via a postauricular approach. Postoperatively, the mass was identified as a cholesterol granuloma on pathologic examination. To the best of our knowledge, this is the first reported case of a human cholesterol granuloma limited to the external ear canal.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Mackay Memorial Hospital, Hsin-Chu City, Taiwan.
authors.forename: Kang-Chao
authors.initials: KC
authors.lastname: Wu
authors.forename: Min-Tsan
authors.initials: MT
authors.lastname: Shu
authors.forename: Cheng-Chien
authors.initials: CC
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D001707:Biopsy, Needle; D002784:Cholesterol; D003560:Cysts / Q000175:diagnosis*; D004424:Ear Canal / Q000473:pathology* / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D015745:Granuloma, Foreign-Body / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D013506:Otologic Surgical Procedures / Q000379:methods; D035583:Rare Diseases; D016896:Treatment Outcome
chemical_list: D002784:Cholesterol