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Case Reports in Medicine
Volume 2015, Article ID 359627, 3 pages
http://dx.doi.org/10.1155/2015/359627
Case Report

Ceruminous Adenoma of the External Auditory Canal: A Case Report with Imaging and Pathologic Findings

11st Academic ENT Department, Aristotle University of Thessaloniki, AHEPA Hospital, 1 Stilponos Kyriakidi Street, 546 36 Thessaloniki, Greece
2Department of Pathology, Aristotle University of Thessaloniki, School of Medicine, 541 24 Thessaloniki, Greece
3Department of Dermatology, Ed. Herriot Hospital Group, Lyon, France

Received 17 September 2015; Revised 26 October 2015; Accepted 27 October 2015

Academic Editor: Christian Koch

Copyright © 2015 George Psillas et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Ceruminous adenomas are benign tumors that are rare in humans and present with a nonspecific symptomatology. The treatment of choice is surgical excision. We present an 87-year-old woman who presented with a reddish, tender, round, soft mass of the outer third of the inferior wall of the left external auditory canal, discharging a yellowish fluid upon pressure. Coincidentally, due to her poor general condition, this patient also showed symptoms consistent with chronic otitis media, parotitis, and cervical lymphadenopathy, such as otorrhea, through a ruptured tympanic membrane and swelling of the parotid gland and cervical lymph nodes. The external auditory canal lesion was surgically excised under general anesthesia, utilizing a transmeatal approach. The pathological diagnosis was ceruminous gland adenoma. The tumor was made of tubular and cystic structures and embedded in a fibrous, focally hyalinized stroma. Immunohistochemistry confirmed the presence of two distinct cell populations. The luminal cells expressed keratin 7, while peripheral (basal) cells expressed keratins 5/6, S100 protein, and p63. The apocrine gland-related antigen GCDFP-15 was focally expressed by tumor cells. The postoperative course was uneventful and at the 2-year follow-up no recurrence of the ceruminous adenoma was noted.