J Korean Neurosurg Soc.  2014 May;55(5):280-283. 10.3340/jkns.2014.55.5.280.

Thrombosis and Recanalization of Small Saccular Cerebral Aneurysm : Two Case Reports and a Suggestion for Possible Mechanism

• Kim HJ
• Kim JH
• Kim DR
• Kang HI

• KMID: 2018035
• DOI: http://doi.org/10.3340/jkns.2014.55.5.280

Abstract

Reports of thrombosis and recanalization of cerebral aneurysm are rare. We report two cases of small, saccular aneurysms in which spontaneous thrombosis had occurred during the preparation for endovascular coiling. Also, we review reported cases and propose the presumed pathogenesis.

Keyword

Aneurysm; Recanalization; Thrombosis

MeSH Terms

Aneurysm
Intracranial Aneurysm*
Thrombosis*

Figure

• 

  Fig. 1 Brain 3-dimensional computed tomographic scan (A) reveals left anterior choroidal artery aneurysm, 3×6 mm in size (white arrow). Rotational angiography (B) and left lateral internal carotid artery angiography (C) shows a partial thrombosis of the distal part of the aneurysm (black and white arrow) compared to the findings of previous angiography. Follow up angiography (D and E) 7 days later demonstrates recanalization of the thrombosed aneurysm (black and white arrow).

• 

  Fig. 2 Cerebral angiography (A) reveals proximal middle cerebral artery aneurysm, 3×1.5 mm in size (black arrow). Subsequent angiography (B) shows complete disappearance of the aneurysm (black arrow). Follow up angiography (C) seven weeks later demonstrates complete recanalization of the aneurysm (black arrow).

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