E-Pearl of the Week: Feeding Dystonia in Chorea Acanthocytosis

December 8, 2011


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December 8, 2011

Feeding dystonia in chorea acanthocytosis

Often in the early course of chorea-acanthocytosis, patients experience dystonic tongue protrusion while eating. They struggle to overcome this by pressing their lips together while chewing, extending the neck so that food falls directly into the pharynx, or by using non-food objects, such as toothpicks as sensory tricks or as a mechanical obstruction to avoid involuntary jaw closure. This interesting phenomenon, when seen in association with chronically elevated CK levels in a young person, is very suggestive of the diagnosis of chorea-acanthocytosis.


  1. Bader B, Walker RH, Vogel M, Prosiegel M, McIntosh J, Danek A. Tongue protrusion and feeding dystonia: a hallmark of chorea-acanthocytosis. Mov Disord 2010; 25: 127-129.

Submitted by: Andres Deik, MD

Disclosures: Dr. Deik has nothing to disclose.

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