Asymptomatic intradiploic epidermoid cyst eroding frontal bone in a patient with craniosynostosis.

Epidermoid cyst located in cranium is uncommon and usually diagnosed with a growing mass leading to symptoms. Asymptomatic intradiploic epidermoid cyst has not been reported yet. In this study, incidental diagnosis of asymptomatic cyst and potential impact of that cyst on surgical planning of a patient with craniosynostosis are presented.