Pilomatrix carcinoma: Third case report from Iran

Pilomatrix carcinoma is a very rare adenexal tumor which originates in the hair matrix cells and is marked by exophytic growing and common local recurrence، but the metastatic potential is limited. It was first described in 1980 by Lopansri and Mihm، and since then about 90 cases have been reported in the literature. There is no established treatment for the wide local invasion and metastasis of the pilomatrix except wide surgical resection. The case reported here was a 9-year-old boy with Pilomatrix carcinoma presented with a hard mass on the forehead but with normal overlying skin.