Post-traumatic calcified epidermoid cyst in the posterior fossa: a case report

Intracranial epidermoid cysts (IECs) are uncommon, with an incidence of 0.1– 0.8% of all intracranial tumors [1,2]. Most are typically observed as congenital diseases in children and are due to remaining ectodermal tissues from the disruption of neural tube closure [1]. Although acquired epidermoid cysts rarely occur, trauma can lead to implantation of epidermal cells in the intracranial space [3]. Herein, we present a case in which trauma led to a large epidermoid cyst in the posterior fossa, causing cortical dysfunction, and where surgical resection improved symptoms.