Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Trichoepithelioma
Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026
Trichoepithelioma: A small benign tumor derived from basal cells in the hair follicle. Trichoepithelioma may occur sporadically or as the cardinal feature of a uncommon genetic disorder called multiple familial trichoepithelioma characterized by the presence of many small tumors predominantly on the face, inherited in an autosomal dominant pattern. A trichoepithelioma can undergo malignant transformation into a basal cell carcinoma.