Malignant proliferating trichilemmal tumour of the scalp. Report of a case and a short review of the literature.

Background: Malignant proliferating trichilemmal tumour is a rare skin tumour that originates from the root sheath of the hair and usually arises in the sun-exposed areas of elderly women. It mimicks poorly differential squamous cell carcinoma ant its biological behaviour is unpredictable, because rarely can produce distant metastases.

Case Report: The Authors report on a case of a 54-year-old female patients who proceeded with a cystic lesion in the scalp.