Multiple familial trichoepithelioma with an adjacent basal cell carcinoma, transformation or collision - A case report and review of literature

Abstract

Trichoepithelioma is a benign tumor of follicular origin that presents as small, skin-colored papules predominantly on the face. When more than one family member is affected, the disease is known as multiple familial trichoepithelioma (MFT). It is a rare autosomal dominant skin disease. Malignant transformation is very rare. We describe here a case that developed malignant neoplasm in a setting of multiple trichoepithelioma.

Keywords

• Basal cell carcinoma
• epithelioma adenoids cysticum
• locus 9p21
• multiple familial trichoepitheliomas
• skin tumor