J Clin Neurol 1:31–49Ĭhaves CJ, Caplan LR, Chung C-S, Amarenco P (1994) In: Appel S (ed) Cerebellar infarcts in current neurology, vol 14. Ann Neurol 56:389–398Ĭaplan LR, Wityk RJ, Pazdera L et al (2005) New England Medical Center posterior circulation stroke registry: II. Stroke 31:2011–2013Ĭaplan LR, Wityk RJ, Glass TA et al (2004) New England Medical Center posterior circulation registry. Blackwell Scientific, BostonĬaplan LR (2000) Posterior circulation ischemia: then, now, and tomorrow the Thomas Willis lecture – 2000. KeywordsĬaplan LR (1996) Posterior circulation disease: clinical findings, diagnosis, and management. The AICAs do not divide into medial and lateral major cerebellar branches but give off twigs to various structures. The AICAs supply only a small part of the anterior inferior cerebellum and the flocculus, but their major supply is to the lateral pontine tegmentum and the brachium pontis. Infarcts in the cerebellum are often limited to the territory of one of these branches.
The PICAs and the SCAs, the two largest arterial pairs, have medial branches that supply mostly the vermian and paravermian portions of their respective regions of the cerebellum and lateral branches that supply the cerebellar hemispheres. The cerebellar arteries are distributed rostrocaudally so that the posterior inferior cerebellar arteries (PICAs) arise from the intracranial vertebral artery, a component of the proximal intracranial posterior circulation territory the anterior inferior cerebellar arteries (AICAs) originate from the basilar artery, a component of the middle intracranial posterior circulation territory and the most rostral arteries, the Superior cerebellar arteries (SCAs), arise near the basilar artery bifurcation and are included in the distal intracranial territory.
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