Dissecting aneurysm of the anterior cerebral artery with persistent pearl and string sign on cerebral angiograms over a period of eight years
Sakamoto, S.; Inagawa, T.; Ikawa, F.; Kawamoto, H.; Ohbayashi, N.; Sakoda, E.; Hidaka, T.
No Shinkei Geka. Neurological Surgery 29(11): 1093-1098
2001
ISSN/ISBN: 0301-2603 PMID: 11758317 Document Number: 534303
We present a rare case of a dissecting aneurysm of the left anterior cerebral artery (ACA) with persistent pearl & string sign on cerebral angiograms over a period of 8 years. A 43-year-old woman with disturbance of consciousness and right sided hemiparesis was conservatively treated. Computed tomographic (CT) scan revealed a low-density area in the left frontal lobe. Initial angiography, which was performed at 6 months after the onset, showed a pearl & string sign at the A2 portion of the left ACA. After 8 years, repeat angiography again showed persistent pearl & string sign at the same portion of the left ACA. We discussed the changes in findings usually obtained in cerebral angiography concerning dissecting aneurysms in ACA.