Abstract
On November 5 1989, a 51-year-old man suddenly experienced a sever throbbing headache follows shortly by the sensation of weakness in the right limbs. He was admitted to our hospital on the same day. Neurological examination showed lethargy, right hemiparesis predominating in the lower limb and urinary incontinence.
A CT scan revealed a low density area in the territory of the left anterior cerebral artery, and a left common carotid angiogram demonstrated a dissecting aneurysm at the A2 and A3 segments of the anterior cerebral artery.
In the literature, it is very rare that dissecting aneurysm involves solely the anterior cerebral artery, and we consider that such a case should be included in the differential diagnosis of the etiology of cerebral infarction.
