title: Squamous cell carcinoma in situ of the external auditory canal.
abstract: We report two cases of carcinoma in situ in the external auditory canal (EAC), presenting with symptoms such as pain, long-term itching of the ear, easy contact bleeding, canal otorrhea and hearing loss. Otoscopic examination revealed granulation tissue and a greyish-black tumour with irregular surface. The first patient had previously been diagnosed with otitis externa with persistent ear itching for the past three years. The second patient had received tympanoplasty for treatment of chronic otitis media on the right ear ten years ago. The first case was treated with wide excision, whereas the second patient received resection of the skin of the EAC together with its adjacent soft tissue, followed by skin grafting. No tumour recurrence was noted in the fourth and third post-operative year for the first and second patient respectively. We suggest that EAC carcinoma can be detected early and treated.
authors.affiliation: Departments of Otolaryngology - Head and Neck Surgery, Mackay Memorial Hospital, Taipei, Taiwan. ent71@ms2.mmh.org.tw
authors.forename: Min-Tsan
authors.initials: MT
authors.lastname: Shu
authors.forename: Hung-Ching
authors.initials: HC
authors.lastname: Lin
authors.forename: Cheng-Chien
authors.initials: CC
authors.lastname: Yang
authors.forename: Kuo-Ming
authors.initials: KM
authors.lastname: Chang
mesh_terms: D000328:Adult; D000686:Amyloidosis / Q000473:pathology / Q000601:surgery; D002278:Carcinoma in Situ / Q000473:pathology* / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000601:surgery; D004424:Ear Canal / Q000473:pathology* / Q000601:surgery; D004428:Ear Neoplasms / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D008297:Male; D010032:Otitis Externa / Q000473:pathology / Q000601:surgery; D016896:Treatment Outcome; D014433:Tympanoplasty