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Posterior circulation infarct
Classification and external resources
Circle of Willis. Posterior circulation represented by bottom half of diagram.
ICD-9	433.0, 433.2

A Posterior Circulation Infarct (POCI) is a type of cerebral infarction affecting the posterior circulation supplying one side of the brain.

Posterior Circulation Stroke Syndrome (POCS) refers to the symptoms of a patient who clinically appears to have suffered from a posterior circulation infarct, but who has not yet had any diagnostic imaging (e.g. CT Scan) to confirm the diagnosis.

It can cause the following symptoms:

• Cranial nerve palsy AND contralateral motor/sensory defect
• Bilateral motor or sensory defect
• Eye movement problems (e.g.nystagmus)
• Cerebellar dysfunction
• Isolated homonymous hemianopia

It has also been associated with deafness.^[1]

See also [link]

• stroke

References [link]