• G G Striph.
• Department of Surgery, Toledo Hospital, Ohio.
• J Clin Neuroophthalmol. 1993 Sep 1; 13 (3): 181-7.

AbstractA 26-year-old woman presented with a partial left oculomotor nerve palsy and an acute subarachnoid hemorrhage. Bilateral angiography showed a left posterior communicating artery aneurysm and a normal right anterior circulation. The aneurysm was successfully clipped. At 4 1/2 years later, she had an acute, nearly complete, right oculomotor nerve palsy. Repeat bilateral angiography showed a right posterior communicating artery aneurysm, in a previously angiographically normal region, and continued closure of the original left-sided aneurysm. New aneurysms may develop from angiographically normal locations. It is possible that certain patients are more susceptible than average to aneurysm formation or that aneurysm repair leads to a higher rate of new aneurysm occurrence. The previous cases of de novo aneurysms are summarized and the implications for repeat aneurysm screening, using current technology, are discussed.

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