Bilateral Dermoid Cysts on the Lateral Ends of Eyebrows.

Abstract

Dermoid cysts are a type of benign periorbital tumor that is frequently encountered in children. According to New and Erich, dermoid cysts originate from dermal and epidermal inclusions along the embryonic cleft closure lines located in the head and neck [1]. Periorbital involvement accounts for more than 50% of the pediatric cases of these cysts. Periorbital dermoid cysts usually manifest as painless, slow-growing swellings on the lateral eyebrows. Sometimes, they can cause inflammation and have a mass effect on the adjacent tissue or bone. Unilateral dermoid cysts on the lateral ends of eyebrows are common, but bilateral dermoid cysts are very rare and only one case has been reported thus far [2]. Here, we report a case of bilateral dermoid cysts on the lateral ends of the eyebrows.