title: Fulminating parapontine epidermoid carcinoma in a four-year-old boy.
abstract: An unique case of primary intracranial epidermoid carcinoma in a 4-year-old boy is described. Its parapontine localization and malignant features combined to produce a fulminating clinical course simulating an intra-axial mass lesion. The probable origin of the carcinoma from a benign epidermoid cyst is discussed. A review of the world's literature establishes not only the rarity of cyst-derived intracranial epidermoid carcinoma, but also its unprecedented occurrence in a child.
mesh_terms: D000368:Aged; D001344:Autopsy; D001932:Brain Neoplasms / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D002675:Child, Preschool; D003884:Dermoid Cyst / Q000473:pathology; D005260:Female; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D011149:Pons / Q000473:pathology*