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KMID : 1001920080430030155
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Journal of Korean Neurosurgical Society
2008 Volume.43 No. 3 p.155 ~ p.158
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An Unusual Case of a Thrombosed Giant Distal PICA Aneurysm Simulating a Large Cavernous Angioma
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Lim Dong-Ho
Jung Shin
Jung Tae-Young
Kim Tae-Sun
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Abstract
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A 64-year-old woman was referred to our hospital with a one-month history of progressive headache. Magnetic resonance imaging (MRI) showed a hemorrhagic mass adjacent to the left inferior cerebellar hemisphere associated with a peripheral rim of signal void. Angiography demonstrated an avascular mass and the provisional diagnosis was a large cavernous angioma in the cerebellum. Intraoperative findings revealed a thrombosed giant aneurysm of the left distal posterior inferior cerebellar artery (PICA). We report an unusual case of a completely thrombosed giant aneurysm simulating a large cavernous angioma in the cerebellum. The cerebellar cisternal location of the mass may be a clue for the pre-operative diagnosis of an aneurysm.
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KEYWORD
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Posterior inferior cerebellar artery, Thrombosed giant aneurysm, Cavernous angioma
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