Intracerebral hemorrhage caused by transmural dissection of the anterior cerebral artery.

BACKGROUND AND PURPOSE

Spontaneous dissection of the intracranial carotid artery or its main branches is an unusual condition.

CASE DESCRIPTION

A 72-year-old hypertensive woman after an intense nuchal rigidity showed a subarachnoid hemorrhage and an interhemispheric hematoma by computed tomography. The neuropathological study revealed a transmural dissection of the pericallosal artery.

CONCLUSIONS

The authors suggest that the dissection origin is an atheromatous plaque that bleeds, producing a dissection plane from the lumen to the adventitial artery.