Bregmatic epidermoid inclusion cyst eroding both calvarial tables.

Dermoid and epidermoid cysts are uncommon masses in the head and neck region of children. Although the most common location of inclusion cysts in the head and neck is the bregma, masses in this region must be differentiated from midline hemangiomas, lipomas, hematomas, or encephaloceles. Inclusion cysts should be considered in the differential diagnosis of all midline cystic lesions in infants, because, if left untreated, it may lead to devastating complications. We present the case of a slowly enlarging midline mass in a female infant to illustrate the potential for serious sequelae from inclusion cysts.