Clear Cell Acanthoma of the Mammary Region: A Case Report

Piyu Parth Naik1, *

1 Department of Dermatology, Saudi-German Hospitals and Clinics, Dubai, United Arab Emirates

© 2021 Piyu Parth Naik.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at Department of Dermatology, Saudi-German Hospitals and Clinics, Hessa Street 331 West, Al Barsha 3, Exit 36 Sheikh Zayed Road, Opposite of American School, Dubai, United Arab Emirates; Tel: +971503725616; E-mail:


Clear cell acanthoma, also known as Degos acanthoma, is a rare benign epithelial skin tumor. Generally, it appears as a solitary lesion on the lower legs, but in this case, it appeared on the right mammary area near the areola, which is an exceedingly rare and exciting finding. This lesion's clinical features revealed elevated dome-shaped plaque with surface lobulations and shiny pink color with a size of 9 mm. Dermoscopy was characteristic with blood vessels lined up in a strings pattern. Excision biopsy was done as a therapeutic measure. Histopathology showed a collection of glycogen-containing cells in the epidermis consistent with the diagnosis of clear cell acanthoma. Classical dermoscopy features and diagnostic histology were exemplary for a case report.

Keywords: Clear cell acanthoma, Mammary region, Benign skin tumor, Degos acanthoma, Dermoscopy, Glycogen-containing cells in the epidermis.