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Trichoadenoma of the upper eyelid: case report and literature review
, 3, 12
Affiliations- Henares University Hospital, Spain
- Facultad de Ciencias de la Salud, Universidad Francisco de Vitoria, Pozuelo de Alarcón, Spain
- Sanitas La Moraleja Hospital, Madrid, Spain
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Abstract
Background: Trichoadenoma of Nikolowski is a rare and benign tumor of the hair follicle. It was first described in 1958. The clinical appearance of trichoadenoma can be confused with basal cell carcinoma, and a differential diagnosis must be made with this entity and with other benign lesions such as epidermal cyst, seborrheic keratosis, actinic keratosis, and more exceptionally with comedo.
Case presentation: We report a case of a 45-year-old woman with a pigmented lesion in the left eyelid mimicking comedo. Histopathology study showed lesions containing keratinous cysts surrounded by lymphocytic components in the dermis and hair shaft among the cystic keratin, which is unusual in these tumors. The lesions were diagnosed as trichoadenoma.
Conclusion: We suggest that all excised eyelid lesions be sent to histopathological study.
Abstract
Background: Trichoadenoma of Nikolowski is a rare and benign tumor of the hair follicle. It was first described in 1958. The clinical appearance of trichoadenoma can be confused with basal cell carcinoma, and a differential diagnosis must be made with this entity and with other benign lesions such as epidermal cyst, seborrheic keratosis, actinic keratosis, and more exceptionally with comedo.
Case presentation: We report a case of a 45-year-old woman with a pigmented lesion in the left eyelid mimicking comedo. Histopathology study showed lesions containing keratinous cysts surrounded by lymphocytic components in the dermis and hair shaft among the cystic keratin, which is unusual in these tumors. The lesions were diagnosed as trichoadenoma.
Conclusion: We suggest that all excised eyelid lesions be sent to histopathological study.
Keywords
trichoadenoma; hair follicle tumor; adnexal tumor
About this articleTitle
Trichoadenoma of the upper eyelid: case report and literature review
Journal
Issue
Vol 7 (2022): Continuous Publishing
Article type
Case report
Pages
1-5
Published online
2022-03-17
Page views
4885
Article views/downloads
553
DOI
Bibliographic record
Ophthalmol J 2022;7:1-5.
Keywords
trichoadenoma
hair follicle tumor
adnexal tumor
Authors
Carlos Izquierdo-Rodriguez
Emilio Dorronzoro-Ramirez
Santiago Nieto-Llanos
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