抄録
The feeding arteries of 14 parasellar meningiomas treated between 1962 and 1985 were analyzed. Nine were medial sphenoid ridge meningiomas (four of the alar type and five of the clinoidal type) and five were tuberculum sellae meningiomas. Retrospective analysis of the arteries supplying the basal dura of the involved region revealed diverse dural branches originating from both the internal and external carotid systems in this region. These arteries were classified as anterior, posterior, or lateral. Two of the four alar type meningiomas were supplied by lateral feeders, and two by both anterior and lateral feeders. One of the five clinoidal meningiomas was fed by anterior and lateral arteries, and one by posterior arteries. No feeding arteries were identified in the three remaining cases of clinoidal meningioma. Three of the five tuberculum sellae meningiomas had anterior feeders, one had posterior feeders, and one had no angiographically detectable feeders. The tumors of three patients in this series were found to be supplied by both the internal and external carotid systems. It can be concluded that there is a relationship between the sites of parasellar tumors and the internal and external carotid arteries that feed them.
