[Malherbe's calcified epithelioma. Review of 80 cases].

The authors review a series of 80 Benign Calcifying Epitheliomas (BCE), and describe their main clinical, histologic and prognostic features, in comparison with those reported in the literature. BCE or pilomatrixoma arises from the hair matrix, and represents approximately 1/1,000 of all skin tumors. Statistically, it is found more frequently among children under the age of 10 years and anatomic locations are mostly located on the face and upper limb. These benign tumors tend to develop slowly in subcutaneous tissue, and their treatment consists of simple surgical excision, except in some instances, where signs of more aggressive behavior can be found.