Traumatic Epidermoid Inclusion Cyst on Cheek Area.

An epidermoid inclusion cyst is basically an epidermoid cyst resulting from the traumatic implantation of epidermal elements into the dermis with their subsequent cystic transformation. A case of an epidermal inclusion cyst of the cheek region is described in a 54-year-old man, whose feature was rather unusual, in that it presented as a fixed, indurated, inflamed, and sometimes, mimicking a parotid gland infection. The cyst was particularly persistent and recurred within a month of its medical treatment and had to be re-excised along with the adjacent parotid mass.