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Trichoepithelioma in Adult
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Trichoepithelioma in Adult

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Contributors: Noah Craft MD, PhD, Belinda Tan MD, PhD, Lindy P. Fox MD
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Synopsis

Trichoepitheliomas are benign neoplasms derived from the hair follicles. They usually present as asymptomatic smooth, skin-colored papules or small nodules on the face or the trunk. They may occur singly and sporadically, but multiple trichoepitheliomas are often inherited as an autosomal dominant trait. This heritable form (multiple familial trichoepithelioma) may be caused by a mutation in a tumor suppressor gene on chromosome 9. Due to decreased penetrance of this gene in men, trichoepitheliomas are seen more commonly in women. They arise most often during childhood or early adolescence.

Treatment is for cosmetic purposes, as malignant transformation of trichoepitheliomas is quite rare, although they are sometimes associated with scalp cylindromas (turban tumors).

Codes

ICD10CM:
D23.30 – Other benign neoplasm of skin of unspecified part of face

SNOMEDCT:
274898000 – Trichoepithelioma

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Last Updated: 10/30/2018
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Trichoepithelioma in Adult
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Trichoepithelioma : Cheek, Nose, Superior lip, Smooth papules, Smooth nodules
Clinical image of Trichoepithelioma
A large, smooth, shiny papule at the nasal alar crease.
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