Intradiploic dermoid cyst: a rare cause of intracranial hypertension.

In this study, we report a rare case of intradiploic dermoid cyst in a patient who developed rapid symptoms of intracranial hypertension (ICH) that mimicked Pseudotumor cerebri syndrome clinically. A 25-year-old female presented with a history of headache, nausea, vertigo and blurred vision in the past 4 months. Images revealed a small supratentorial extradural intradiploic tumor. A midline occipital craniotomy was performed and total removal of the dermoid cyst was accomplished. Present case demonstrated that dermoid cysts can be considered an exceptionally rare basic cause of ICH.