External angular dermoid cyst: An unusual case report with surgical intervention and clinico-pathological analysis.

Abstract

Dermoid and epidermoid cysts which belong to choristomas, usually manifest clinically as superficial and deep cystic movable formations, most often with a slow and intermittent growth. In the present article we report a case of an external angular dermoid cyst in a 13-year-old boy, the growth of which was steady on progression. Surgical excision of the cyst was done by approaching through an external sub-brow incision. Dermoid cysts are unusual neoplasms that often seen in children with the most commonly affected site being the orbit in the head and neck region. Such cysts may cause compression to the eye lobe and the optic nerve. Hence, operative procedures may be suggested in the case of such cysts which have a constant progression. 

Keywords: Choristoma; Dermoid; Sub-brow incision.