RT Journal Article SR Electronic T1 Giant Serpentine Aneurysm with Acute Spontaneous Complete Thrombosis JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 766 OP 768 VO 27 IS 4 A1 A. Sari A1 S. Kandemir A1 K. Kuzeyli A1 H. Dinc YR 2006 UL http://www.ajnr.org/content/27/4/766.abstract AB SUMMARY: We report a case of a giant serpentine aneurysm (GSA) of the middle cerebral artery (MCA) that underwent complete spontaneous thrombosis after angiography. The patient was a 24-year-old man who had an acute headache. CT and MR examinations revealed a large partially thrombosed aneurysm of the MCA with residual flow in the artery. Angiography demonstrated a GSA arising from the left MCA. Thirteen days later, a second angiography showed complete thrombosis of the aneurysm.