Multiple trichoepithelioma is a rare epithelial tumour that attempts to differentiate into hair follicule cells. It is frequently dominantly-inherited and its gene has been mapped to chromosome 9p21.
After puberty, multiple skin-coloured nodules appear. Predominantly, these are on the face but they can appear on the scalp, neck and trunk. Histologically, there are multiple lacunae filled with keratin - horn cysts. There may be focal proliferations of basal cells. There may be failed attempts to form hair papillae and follicles.
Usually after a long duration, the trichoepithelioma may transform into an invasive basal cell epithelioma or carcinoma. Treatment is excision.
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page