title: Adenoid cystic carcinoma of the external auditory canal.
abstract: Adenoid cystic carcinoma of the external auditory canal is much less common than squamous cell carcinoma and basal cell carcinoma. Signs and symptoms of the case presented here consisted of a longstanding discharging ear, a progressive hearing loss, and the presence of a circumferential subcutaneous induration in the distal third of the external auditory canal. No dizziness, tinnitus, or facial weakness was present. Computed tomography showed a soft tissue mass in the external auditory canal and middle ear with no lytic areas of the mastoid or the temporal region. A biopsy specimen was interpreted as an adenoid cystic carcinoma. Treatment consisted of radical excision of the external auditory canal via a modified temporal bone resection. This radical approach resulted in the local eradication of the lesion.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Soroka University Hospital, Ben-Gurion University, Negev, Beer-Sheva, Israel.
authors.forename: D M
authors.initials: DM
authors.lastname: Fliss
authors.forename: M
authors.initials: M
authors.lastname: Kraus
authors.forename: F
authors.initials: F
authors.lastname: Tovi
mesh_terms: D003528:Carcinoma, Adenoid Cystic / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D003937:Diagnosis, Differential; D004424:Ear Canal; D004428:Ear Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000601:surgery; D006314:Hearing Loss, Conductive / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged