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Giant seborrheic keratosis on the external auditory meatus
*Corresponding author: Pradeep S. Nair, Department of Dermatology and Venereology, Government Medical College, Thiruvananthapuram, Kerala, India. dvmchtvm@yahoo.co.in
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Received: ,
Accepted: ,
How to cite this article: Nair PS. Giant seborrheic keratosis on the external auditory meatus. J Skin Sex Transm Dis. 2024;6:225-6. 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.
- Hyperpigmented plaque with a cerebriform surface and stuck on appearance on the right ear.
- Skin biopsy showing hyperkeratosis, keratotic plugging, and irregular acanthosis. Arrow denotes horn cyst (Hematoxylin & eosin, ×400).
Ethical approval
The Institutional Review Board approval is not required.
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.
Use of artificial intelligence (AI)-assisted technology for manuscript preparation
The authors confirm that there was no use of artificial intelligence (AI)-assisted technology for assisting in the writing or editing of the manuscript and no images were manipulated using AI.
Financial support and sponsorship
Nil.
