Intraosseous meningiomaの1例

Report of A Case of Intraosseous Meningioma

I．はじめに

　頭蓋骨に主座を置くmeningiomaは，intra—osseous meningiomaとも呼ばれ^{2,3,7,11,13,17,19）}，その報告は1932年Alpersら^1）が最初に記載して以来散見される．今回われわれは，intra—osseous meningiomaと思われる1例を経験したので，若干の文献的考察を加えて報告する．

Cases of intraosseous meningioma appear to be very rare. In the present paper, we report such a case and discuss its etiological histogenesis on the basis of a re-view of 26 cases previously reported.

A 71-year-old famale was admitted to our department because of a painless mass in the right parietal region. Neurological findings were normal. Plain skull radio-graph showed a 6×5-cm osteolytic lesion in the right fronto-parietal bone. CT scan demonstrated this lesion as a mass showing homogeneous enhancement with contrast medium.