Journal of Korean Neurosurgical Society

The Korean Neurosurgical Society (대한신경외과학회)
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An Aneurysm Developing on the Infundibulum of Posterior Communicating Artery : Case Report and Literature Review

  • Jang, Woo-Youl (Department of Neurosurgery, Chonnam National University, Medical School) ;
  • Joo, Sung-Pil (Department of Neurosurgery, Chonnam National University, Medical School) ;
  • Kim, Tae-Sun (Department of Neurosurgery, Chonnam National University, Medical School) ;
  • Kim, Jae-Hyoo (Department of Neurosurgery, Chonnam National University, Medical School)
  • Published : 2006.10.30
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Abstract

Infundibular dilatation is funnel-shaped symmetrical enlargement that occurs at the origin of cerebral arteries and which is apparent on 7 to 25% of normal angiograms. Infundibular dilatation is frequently considered a normal anatomic variation of no pathologic significance. The authors report a case in which an aneurysm developed on an infundibular dilatation of the posterior communicating artery [PComA]. A 72-year-old woman presented with severe headache, nausea, and vomiting. Digital subtraction angiography showed a saccular aneurysm arising from the origin of the left PComA. Operative findings revealed the aneurysm and infundibular widening of the right PComA. The aneurysm was successfully obliterated. Whether infundibular dilatation is a pre-aneurysmal state or a benign dilatation is controversial. However, we believe infundibular dilatation of the PComA in this case may have served as a pre-aneurysmal lesion.

Keywords

References

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