두피 농양과 연결관을 가진 두개내 유피낭종 1례

A Case of Intracranial Dermoid Cyst Associated with Scalp Abscess

Intracranial dermoid cyst is a rare congenital disease originating in the embryo. Intracranial dermoid cysts are usually detected before five years of age; however, asymptomatic cysts have been discovered after the third decade of life through various complications. Sometimes, there are neurologic symptoms caused by a cys- tic mass effect and if there is a dermoid sinus, purulent infections can occur. Early diagnosis is important and as such, CT or MR imaging for recognition of the loca- tion, size, and characteristics of the cysts are recommended before surgical resec- tion. Extradural dermoid cysts with an intact occipital dermoid sinus are a rare event. We report a case of intracranial dermoid cyst associated with scalp abscess. In this case, a three-year-old boy was presented with scalp abscess and we per- formed MR imaging, which revealed a cystic region. The prognosis after resection operation was good without any complication.