Dissecting aneurysm in the proximal region of the posterior inferior cerebellar artery presenting as Wallenberg's syndrome--case report.
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 not 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.
Mizushima
H
H
Department of Neurosurgery, Showa University School of Medicine, Tokyo, Japan.
Sasaki
K
K
Kunii
N
N
Nishino
T
T
Jinbo
H
H
Abe
T
T
Shimazu
M
M
Matsumoto
K
K
D000328:Adult; D000784:Aortic Dissection / Q000150:complications*; D001158:Arteries; D002531:Cerebellum / Q000098:blood supply*; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications*; D014854:Lateral Medullary Syndrome / Q000209:etiology*