Neurologia medico-chirurgica
Online ISSN : 1349-8029
Print ISSN : 0470-8105
ISSN-L : 0470-8105
Dissecting Aneurysm in the Proximal Region of the Posterior Inferior Cerebellar Artery Presenting as Wallenberg''s Syndrome —Case Report—
Hidekatsu MIZUSHIMAKen SASAKINorihiko KUNIITakeshi NISHINOHiroshi JINBOTakashi ABEMotohiko SHIMAZUKiyoshi MATSUMOTO
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1994 年 34 巻 5 号 p. 307-310

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A 29-year-old female presented with an unusual case of Wallenberg''s syndrome due to a dissecting aneurysm of the posterior inferior cerebellar artery (PICA) manifesting as a sensation of heaviness in the occipital region and vertigo. Magnetic resonance imaging revealed infarction of the lateral aspect of the medulla oblongata. Digital subtraction angiography (DSA) revealed a spindle-shaped dilatation of irregular contour in the proximal portion of the left PICA. Pooling of contrast medium was noted in the venous phase but no double lumen sign. A suboccipital craniectomy confirmed these findings macroscopically. Blood flow meter monitoring before and after proximal clipping of the diseased vessel ensured the safety of the procedure. Follow-up DSA 3 years after surgery revealed no evidence of aneurysm recurrence.
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© The Japan Neurosurgical Society
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