Abstract
We report herein a case of an 85-year-old male presenting with an intradiploic skull dermoid cyst arising from the temporal bone. The majority of reported skull dermoid cyst cases have involved young patients, with adult cases being relatively rare. Most reported cysts have been localized in frontal or periorbital regions. One of the factors suggesting that the tumors had arisen in these regions was a tendency for neurological deficits or massive extracranial extension, which was detected in the early stages. As skull demoid cysts that extend intracranially typically induce only negligible neurological deficits, they have the potential of going undetected for long periods of time as a small scalp mass. When differentiating asymptomatic skull lesions, carefull consideration should be given to the possibility of dermoid cysts even in elderly patients.
