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Apocrine Adenoma of the External Auditory Canal with Pseudoepitheliomatous Hyperplasia

The tumors derived of the ceruminous gland in the external auditory canal are rare. Here, we report a case of a ceruminous adenoma (apocrine adenoma) with refractory chronic inflammation in the external auditory canal. A 46-year-old man presented with otorrhea, itching, and a foreign body sensation...

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Autores principales: Ohki, Masafumi, Kikuchi, Shigeru
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6402199/
https://www.ncbi.nlm.nih.gov/pubmed/30915250
http://dx.doi.org/10.1155/2019/7395856
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author Ohki, Masafumi
Kikuchi, Shigeru
author_facet Ohki, Masafumi
Kikuchi, Shigeru
author_sort Ohki, Masafumi
collection PubMed
description The tumors derived of the ceruminous gland in the external auditory canal are rare. Here, we report a case of a ceruminous adenoma (apocrine adenoma) with refractory chronic inflammation in the external auditory canal. A 46-year-old man presented with otorrhea, itching, and a foreign body sensation in his right ear. A soft reddish protruding lesion was revealed at the posterosuperior portion of the entry to the right external auditory canal by otoscopy. The skin lesion was endaurally resected; histopathology showed luminal structures in the middle to deep layer of the epidermis and inflammatory granulation below pseudoepitheliomatous hyperplasia. The walls of the luminal structures consisted of inner luminal secretory cells featuring apical decapitation secretion and outer myoepithelial cells. The patient was diagnosed with an apocrine adenoma. Three years after surgery, there has been no evidence of recurrence. Complete resection, including the deep layer of the epidermis, is necessary.
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spelling pubmed-64021992019-03-26 Apocrine Adenoma of the External Auditory Canal with Pseudoepitheliomatous Hyperplasia Ohki, Masafumi Kikuchi, Shigeru Case Rep Otolaryngol Case Report The tumors derived of the ceruminous gland in the external auditory canal are rare. Here, we report a case of a ceruminous adenoma (apocrine adenoma) with refractory chronic inflammation in the external auditory canal. A 46-year-old man presented with otorrhea, itching, and a foreign body sensation in his right ear. A soft reddish protruding lesion was revealed at the posterosuperior portion of the entry to the right external auditory canal by otoscopy. The skin lesion was endaurally resected; histopathology showed luminal structures in the middle to deep layer of the epidermis and inflammatory granulation below pseudoepitheliomatous hyperplasia. The walls of the luminal structures consisted of inner luminal secretory cells featuring apical decapitation secretion and outer myoepithelial cells. The patient was diagnosed with an apocrine adenoma. Three years after surgery, there has been no evidence of recurrence. Complete resection, including the deep layer of the epidermis, is necessary. Hindawi 2019-02-20 /pmc/articles/PMC6402199/ /pubmed/30915250 http://dx.doi.org/10.1155/2019/7395856 Text en Copyright © 2019 Masafumi Ohki and Shigeru Kikuchi. http://creativecommons.org/licenses/by/4.0/ 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.
spellingShingle Case Report
Ohki, Masafumi
Kikuchi, Shigeru
Apocrine Adenoma of the External Auditory Canal with Pseudoepitheliomatous Hyperplasia
title Apocrine Adenoma of the External Auditory Canal with Pseudoepitheliomatous Hyperplasia
title_full Apocrine Adenoma of the External Auditory Canal with Pseudoepitheliomatous Hyperplasia
title_fullStr Apocrine Adenoma of the External Auditory Canal with Pseudoepitheliomatous Hyperplasia
title_full_unstemmed Apocrine Adenoma of the External Auditory Canal with Pseudoepitheliomatous Hyperplasia
title_short Apocrine Adenoma of the External Auditory Canal with Pseudoepitheliomatous Hyperplasia
title_sort apocrine adenoma of the external auditory canal with pseudoepitheliomatous hyperplasia
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6402199/
https://www.ncbi.nlm.nih.gov/pubmed/30915250
http://dx.doi.org/10.1155/2019/7395856
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