Kosin Med J.  2018 Dec;33(2):228-234. 10.7180/kmj.2018.33.2.228.

A Case of Ceruminous Adenoma Arising from the External Auditory Canal

Affiliations
  • 1Department of Otolaryngology, Gyeongsang National University School of Medicine, Jinju, Korea. skahn@gnu.ac.kr
  • 2Institute of Health Sciences, Gyeongsang National University School of Medicine, Jinju, Korea.

Abstract

Ceruminous adenoma is a benign neoplasm of the ceruminous gland, and its development in human external auditory canal is very rare. Due to the limited number of cases, controversy still exists about nomenclature, classification, diagnosis and its treatment. Recently we experienced a 55 years old woman who was diagnosed with ceruminous adenoma of the external auditory canal, and who was treated with wide excision. So we report this uncommon case in combination with a review of the literature.

Keyword

Adenoma; Ceruminous gland; External auditory canal

MeSH Terms

Adenoma*
Classification
Diagnosis
Ear Canal*
Female
Humans

Figure

  • Fig. 1 Mass arising from antero-superior portion of right external auditory canal with smooth surface was noted.

  • Fig. 2 Enhanced axial (A) and coronal (B) temporal bone CT scan shows an about 1.1cm size non-enhancing heterogeneous mass lesion (arrow) with adjacent bony erosion (astrix).

  • Fig. 3 Dissected yellowish mass with piecemeal technique. The diameter of the largest one was about 0.6cm.

  • Fig. 4 A microscopic view shows the biphasic nature of the main mass. The inner apocrine cells have a eosinophilic cytoplasm (arrow), subtended by small myoepithelial cells (dotted line arrow). (H&E, ×200)

  • Fig. 5 Positive immunohistochemical staining for CK 7 (A) and p63 (B). ( ×200)

  • Fig. 6 Endoscopic finding of post-operation 10 month; the mass located on the antero-superior portion of right external auditory canal was completely removed and there is no evidence of recurrence.


Reference

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