Anterior cerebral artery dissections manifesting as cerebral hemorrhage and infarction, and presenting as dynamic angiographical changes--case report.
A 65-year-old woman presented with multiple dissecting aneurysms of the anterior cerebral artery (ACA) manifesting as hemiparesis on the right with dominance in the lower extremity. Computed tomography revealed hematoma in the left frontal lobe, corresponding to the area perfused by the callosomarginal artery. Initial angiography showed string sign and occlusion in the distal portion of the left callosomarginal artery and abnormal feeding suggesting double lumen of the A2 portion of the left ACA. The patient was treated conservatively under a diagnosis of multiple spontaneous dissecting aneurysms of the left ACA. Repeat angiography on Day 8 showed improvement of the string sign and occlusion in the left callosomarginal artery, and change of the double lumen of the A2 portion into string sign. Further angiography on Day 36 showed normalization of the left callosomarginal artery and improvement of the string sign in the A2 portion. Multiple spontaneous dissecting aneurysms of the ACA are extremely rare. Serial angiography beginning in the early stage will be important for correct diagnosis.
Sakamoto
Shigeyuki
S
Department of Neurosurgery, Shimane Prefectural Central Hospital, Izumo, Shimane, Japan. sakamoto@hiroshima-u.ac.jp
Inagawa
Tetsuji
T
Ikawa
Fusao
F
Kawamoto
Hitoshi
H
Ohbayashi
Naohiko
N
D000368:Aged; D000784:Aortic Dissection / Q000150:complications* / Q000000981:diagnostic imaging; D002533:Cerebral Angiography; D002543:Cerebral Hemorrhage / Q000000981:diagnostic imaging / Q000209:etiology*; D003244:Consciousness Disorders / Q000209:etiology; D005260:Female; D005625:Frontal Lobe / Q000000981:diagnostic imaging; D006406:Hematoma / Q000000981:diagnostic imaging / Q000209:etiology; D006801:Humans; D006973:Hypertension / Q000150:complications; D020243:Infarction, Anterior Cerebral Artery / Q000000981:diagnostic imaging / Q000209:etiology*; D002532:Intracranial Aneurysm / Q000150:complications* / Q000000981:diagnostic imaging; D010291:Paresis / Q000209:etiology