Clinical Syndromes Branch Occlusion

BASILAR ARTERY - LONG CIRCUMFLEX BRANCH OCCLUSION

Anatomy

Posterior cerebral artery - _

nerve

Basilar -artery

Basilar -artery

1. Superior cerebellar artery

— 2. Anterior inferior cerebellar artery

The cerebellum is supplied by three paired blood vessels:

1. Superior cerebellar artery

— 2. Anterior inferior cerebellar artery arise from basilar artery

3. Posterior inferior cerebellar artery (PICA) which arises from the vertebral artery.

Vertebral artery

It can be seen that a vascular lesion in the territory of these vessels will produce, not only cerebellar, but also brain stem symptoms and signs localising to:

(a) superior pontine,

(b) inferior pontine and

(c) medullary levels.

Clinical features

Superior cerebellar artery syndrome results in:

MIDBRAIN

Red nucleus

Spinothalamic tract nerve

Red nucleus nerve

Sympathetic

disturbed gait, limb ataxia.

ipsilateral Horner's syndrome, t \ ~~ contralateral sensory loss -

\ f'fji.'.'A pain/temperature (including face).

Spinothalamic tract

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