Trichoepithelioma

Abstract

Trichoepithelioma—a small benign tumor derived from basal cells in the hair follicle. It may occur sporadically or as the cardinal feature of a relatively common 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. 1 This is a case report of 66-year-old male patient with a rounded and mobile firm swelling of 1 cm on mandibular labial vestibule of the oral cavity causing alarm and discomfort to the patient.

Keywords

• Autosomal dominant
• Basal cell carcinoma
• Brooke-Spiegler syndrome (BSS)
• Cylindroma (CYLD)
• Papillary mesenchymal bodies
• Trichoepithelioma (TE)