title: Diploic meningioma of the orbital roof.
abstract: A case of ectopic meningioma, which was confined in the diploic space of the orbital roof, is reported. Histologically, paranasal sinus mucosa was found in the tumor specimen without sharp demarcation. Nomenclature and histogenesis of this type of meningioma are discussed.
mesh_terms: D002648:Child; D006801:Humans; D008297:Male; D008579:Meningioma / Q000145:classification* / Q000000981:diagnostic imaging / Q000473:pathology; D009297:Nasal Mucosa / Q000473:pathology; D009918:Orbital Neoplasms / Q000145:classification* / Q000000981:diagnostic imaging / Q000473:pathology; D011859:Radiography