Intradiploic epidermoid cysts, an uncommon benign lesions that variably affect the two tables of calvaria. The clinical manifestations are usually related to mass effect. Here we report a case of intradiploic epidermoid cyst in right parietal bone with intracranial rupture causing acute bacterial meningitis as per cerebrospinal fluid analysis and cranial tomograph. To the best of our knowledge, acute bacterial meningitis as complication has never been described in the existing literature.

Keywords: Epidermoid Cyst; Intradiploic; Meningitis.