Dural arteriovenous malformation in the anterior cranial fossa: report of a case.

We present an unusual case involving intracranial arteriovenous malformations in the anterior cranial fossa located symmetrically on both sides. A mixed pial and dural arteriovenous malformation, the nidus of which was localized in the brain parenchyma, was found on the right side and a pure dural arteriovenous malformation on the left side. Our case is felt to support the hypothesis of a congenital origin for dural arteriovenous malformation in the anterior cranial fossa, because the dural arteriovenous malformation coexisted with the mixed pial and dural arteriovenous malformation, which can be attributed to a disturbance of normal embryonic development.