title: Intradiploic frontal epidermoid cyst in a patient with repeated head injuries: is there a causative relationship?
abstract: Epidermoid cysts are rare disontogenetic tumoral lesions in the cranial compartment (1% of all intracranial tumors) and are usually located in relation to the cranial sutures; the intradiploic location is the less frequent. We report a clinical case in which the post-traumatic etiology of a frontal intradiploic epidermoid is considered. The histological findings revealed the presence of an epidermoid tumor associated with a typical foreign body inflammatory reaction, after repeated head traumas at the site of the tumour. This is the first case in whom the association between this tumoral lesion and a tissue inflammatory reaction due to foreign bodies is demonstrated.
authors.affiliation: U.O. Neurochirurgia, Dipartimento di Neuroscienze, Fondazione Ospedale Maggiore Policlinico, Mangiagalli, Milano, Italy.
authors.forename: M
authors.initials: M
authors.lastname: Locatelli
authors.forename: R
authors.initials: R
authors.lastname: Alimehmeti
authors.forename: P
authors.initials: P
authors.lastname: Rampini
authors.forename: F
authors.initials: F
authors.lastname: Prada
mesh_terms: D000328:Adult; D001847:Bone Diseases / Q000175:diagnosis* / Q000209:etiology* / Q000601:surgery; D006259:Craniocerebral Trauma / Q000150:complications*; D004814:Epidermal Cyst / Q000175:diagnosis* / Q000209:etiology* / Q000601:surgery; D005624:Frontal Bone; D006801:Humans; D008297:Male