Neuroacanthocytosis (NA syndromes) refers to 2 genetic disorders (chorea-acanthocytosis and McLeod syndrome) characterised by misshapen, spiny red blood cells (acanthocytosis) and neurological abnormalities, particularly movement disorders. The onset, severity and specific physical findings vary depending upon the specific type of NA present. Symptoms include chorea (involuntary, dance-like movements), involuntary movements of the face and tongue, progressive cognitive impairment, muscle weakness, seizures and behavioural or personality changes.