title: Avoiding misdiagnosis in ceruminous gland tumours.
abstract: Ceruminous gland tumours are infrequent lesions of the external auditory canal (EAC). Controversy still exists about nomenclature, classification, tissue of origin, and accurate diagnosis of these tumours. We present three cases of ceruminous gland tumours, including benign eccrine cylindroma, ceruminous adenoma, and adenoid cystic carcinoma. Superficial biopsy led to an initial erroneous diagnosis of adenocarcinoma in the latter. All cases were positive for cytokeratin and S-100 protein, supporting a ceruminous gland origin. The benign eccrine cylindroma should be included in the ceruminous gland tumour classification. A wide excisional biopsy should be performed in every EAC lesion. The terms 'ceruminoma' and 'cylindroma' should be avoided.
authors.affiliation: Department of Otolaryngology, University Hospital, Paseo de la Castellana, 261, 28046 Madrid, Spain. luikilassa@yahoo.com
authors.forename: Luis
authors.initials: L
authors.lastname: Lassaletta
authors.forename: Mercedes
authors.initials: M
authors.lastname: Patrón
authors.forename: Javier
authors.initials: J
authors.lastname: Olóriz
authors.forename: Rosa
authors.initials: R
authors.lastname: Pérez
authors.forename: Javier
authors.initials: J
authors.lastname: Gavilán
mesh_terms: D000236:Adenoma / Q000175:diagnosis* / Q000473:pathology; D000328:Adult; D001706:Biopsy; D001707:Biopsy, Needle; D003528:Carcinoma, Adenoid Cystic / Q000175:diagnosis* / Q000473:pathology; D002571:Cerumen; D003937:Diagnosis, Differential; D004424:Ear Canal / Q000473:pathology*; D004428:Ear Neoplasms / Q000145:classification / Q000175:diagnosis* / Q000473:pathology; D004439:Eccrine Glands / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009626:Terminology as Topic; D014944:World Health Organization