Abstract
We reported a case of cerebral arteriovenous maliformation (AVM) draining into the primitive callosal vein. A six-year-old man admitted to our hospital for the purpose of treatment of cerebral AVM, after operation of AVM of the lung. His mother was also operated due to cerebral AVM 14 years ago. Cerebral angiography revealed a large aneurysmal dilatation in the left frontal lobe draining into a dilated vein running along the corpus callosum, which were corresponding to the primitive callosal vein. A nidus adjacent to the aneurysmal dilatation was recognized. Other two small AVMs were also seen in the right frontal lobe. This case had multiple cerebral AVMs, and AVMs of the lung. Futhermore, his mother was operated due to cerebral AVMs. It was likely that this case was corresponding to Rendu-Osler-Weber disease.
AVMs draining into the primitive callosal vein seen in this case confirmed that AVMs develop during embryonic life.
