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ARTICLE IN PRESS
doi:
10.25259/JSSTD_11_2023

Giant seborrheic keratosis on the external auditory meatus

Department of Dermatology and Venereology, Government Medical College, Thiruvananthapuram, Kerala, India
Corresponding author: Pradeep S. Nair, Department of Dermatology and Venereology, Government Medical College, Thiruvananthapuram, Kerala, India. dvmchtvm@yahoo.co.in
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This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-Share Alike 4.0 License, which allows others to remix, transform, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.

How to cite this article: Nair PS. Giant seborrheic keratosis on the external auditory meatus. J Skin Sex Transm Dis doi: 10.25259/JSSTD_11_2023.

A 57-year-old-man presented with a hyperpigmented lesion on the right external auditory meatus of 9 months duration. The lesion first started on the external auditory meatus as a small, pigmented papule and then grew in size over a period of months. The lesion was asymptomatic. On examination, there was a well-defined, hyperpigmented plaque with a cerebriform surface and stuck on appearance, extending from the external auditory meatus to the helix of the right ear [Figure 1]. The plastic surgeons did an excision biopsy, which showed hyperkeratosis, keratotic plugging, massive irregular acanthosis, and horn cysts in the epidermis, diagnostic of seborrheic keratosis [Figure 2]. There were no histological features of any malignancy. There was no recurrence after excision.

Figure 1:
Hyperpigmented plaque with a cerebriform surface and stuck on appearance on the right ear.
Figure 2:
Skin biopsy showing hyperkeratosis, keratotic plugging, and irregular acanthosis. Arrow denotes horn cyst (H and E, ×400).

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent.

Conflicts of interest

Dr. Pradeep S. Nair is on the editorial board of the Journal.

Financial support and sponsorship

Nil.


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