Dural Cavernous Angiomas Outside the Middle Cranial Fossa

Cavernous angiomas of the dura mater are clinically and radiographically distinct from parenchymal cavernous angiomas. In this report, we present two cases of dural cavernous angiomas located outside the middle cranial fossa. The first patient is a 36-year-old woman with two dural cavernous angiomas, including one that enlarged during a 2-year period of observation. The second patient is a 33-year-old man with medically intractable seizures from a dural cavernous angioma of the convexity, which was discovered at autopsy. From our experience and a review of the literature, we have identified two groups of dural cavernous angiomas that differ in incidence, natural history, and surgical management