title: External auditory canal stenosis due to the use of powdered boric acid.
abstract: Acquired stenosis of the external auditory canal (EAC) may occur because of chronic external otitis, recurrent chronic catarrhal otitis media associated with tympanic membrane perforation, chronic dermatitis, tumors, and trauma. Stenosis occurs generally at the one-third bone part of the external auditory canal. In this article, we present 3 cases of acquired EAC stenosis due to the previous powdered boric acid application. Besides the presentation of surgical intervetions in these cases, we want to notify the physicians not to use or carefully use powdered boric acid because of the complication of EAC stenosis.
authors.affiliation: From the *ENT Department, Kiziltepe State Hospital; †ENT Department, Mardin State Hospital, Mardin; ‡ENT Department, Faculty of Medicine, Kirikkale University, Kirikkale; and §ENT Department, Faculty of Medicine, Eskisehir Osmangazi University, Eskisehir, Turkey.
authors.forename: Riza
authors.initials: R
authors.lastname: Dündar
authors.forename: Fatih Kemal
authors.initials: FK
authors.lastname: Soy
authors.forename: Erkan
authors.initials: E
authors.lastname: Kulduk
authors.forename: Nuray Bayar
authors.initials: NB
authors.lastname: Muluk
authors.forename: Cemal
authors.initials: C
authors.lastname: Cingi
mesh_terms: D000293:Adolescent; D000328:Adult; D000891:Anti-Infective Agents, Local / Q000009:adverse effects*; D001888:Boric Acids / Q000009:adverse effects*; D002908:Chronic Disease; D003251:Constriction, Pathologic / Q000139:chemically induced*; D004427:Ear Diseases / Q000139:chemically induced*; D005260:Female; D006314:Hearing Loss, Conductive / Q000139:chemically induced; D006801:Humans; D008297:Male; D008875:Middle Aged; D010032:Otitis Externa / Q000139:chemically induced*; D010033:Otitis Media / Q000188:drug therapy; D055815:Young Adult
chemical_list: D000891:Anti-Infective Agents, Local; D001888:Boric Acids; C032688:boric acid