A dermoid cyst with a draining sinus in the lateral orbital region

Abstract

A 7-year-old girl presented with a small fistula in the right lateral orbital region since birth. Bacteremia developed from a local infection of the region at the age of 6 years and 10 months. The blind end of the fistula was a cyst located slightly cranial to the right frontozygomatic suture, and the region was accompanied by osseous concavity. Based on the present case and our literature search of reported cases, when this defect is suspected, it is important to identify its location and morphology using imaging techniques and perform early excision of the cyst. Keywords: Dermoid cyst, Sinus, Lateral orbital region