Abstract
The natural history of atraumatic idiopathic dissection of the distal anterior cerebral artery is still unclear. We present a 38-year-old man who had dissection of the left A2 segment of this vessel associated with subintimal hematoma and infarction. Because of complete stroke in acute stage, he did not undergo surgery. About three months later, administration of aspirin (100 mg/day) was started. At nine months, magnetic resonance angiography revealed complete recanalization of the A2 dissection. To assess the outcome of dissection, we should observe the patient for at least one year.
Highlights
Atraumatic intracranial dissecting aneurysm mainly occurs in the vertebrobasilar or internal carotid arteries [1]
We report an unusual case of dissection of the distal anterior cerebral artery that showed angiographic recovery by 9 months after the onset with antiplatelet therapy alone
A 38-year-old man suffered from the sudden onset of severe headache, difficulty speaking, and right hemiparesis
Summary
Atraumatic intracranial dissecting aneurysm mainly occurs in the vertebrobasilar or internal carotid arteries [1]. Reports about dissecting aneurysms of the distal anterior cerebral artery have been gradually increasing, especially in Japan, the clinical course and treatment of this lesion are still unclear. We report an unusual case of dissection of the distal anterior cerebral artery that showed angiographic recovery by 9 months after the onset with antiplatelet therapy alone.
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