Territory of anterior choroidal artery (AchA)

Area arteriae chorioideae anterioris

Definition

The territory of the AChA is part of the hippocampus, the posterior limb of the internal capsule and extends upwards to an area lateral to the posterior part of the cella media. 

Stroke pattern: pure motor deficit or motor and sensory dysfuction. Less common: 3H syndrom (hemiparesis, hemihypesthesia, hemianopia). Hypophonia and abnormal movements may be present (basal ganglia involvement).

References

The vascular territories in the cerebellum and brainstem: CT and MR study. by Savoiardo M, Bracchi M, Passerini A, Visciani A. AJNR Am J Neuroradiol. 1987 Mar-Apr;8(2):199-209. Oxford Textbook of Stroke and Cerebrovascular Disease - Bo Norrving - Oxford University Press, 2014

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