尸检中偶然发现的位于蝶骨脊处的脑膜瘤(左上),它是脑膜瘤的另一个好发部位。蝶鞍底位于中间下部，它的上面是灰褐色垂体。垂体的上部及侧部是颈内动脉和大脑前动脉，再稍微向上即是位于中间的视神经(略带黄色)。
An incidental finding at autopsy, this light tan colored meningioma involved the sphenoid ridge, another common location. The base of the sella is seen here, above which is the tan-colored pituitary gland. Above and on each side lateral to pituitary are the internal carotid and the anterior cerebral arteries, above which slightly medially are the optic nerves.