A de novo discharging sinus of the fronto-orbital suture: a rare presentation of a dermoid cyst

Dermoid cysts are developmental anomalies, resulting primarily from trapped germinal epithelium. In the neck and head region, the most common location is the fronto-orbital upper outer quadrant of the orbit. Because only a few cases of dermoid cysts with discharging sinus of the fronto-orbital area have been reported in the literature, the authors present an unusual case of a frontozygomatic suture dermoid cyst, presenting as a sinus, in an 56-year-old man. The histologic report confirmed that the cystic lesion was a dermoid cyst with a tract. Diagnosis and management are discussed.