Tumour derived from the hair follicle appearing as a firm flesh-coloured nodule, usually on the face. This non-hereditary tumour is generally seen in early adult life. Occasionally, it presents in childhood. The solitary tumour may be hard to distinguish from a basal cell carcinoma. Multiple trichoepitheliomas occur as an autosomal dominant condition called epithelioma adenoides cysticum. They generally begin during early childhood or at puberty as firm skin-coloured papules and nodules on the face, or, exceptionally, on the upper trunk or arms.
Brooke's tumor, Brooke's tumour, Epithelioma adenoides cysticum, Trichoepithelioma