Sir: The term neuroacanthocytosis describes a group of phenotypically and genetically heterogeneous disorders associated with choreatic movements, psychiatric abnormalities, and cognitive decline. 1,2 Patients with neuroacanthocytosis may develop dementia, 3 schizophrenia, 4,5 obsessive-compulsive disorder (OCD), 5,6 tourettism, 7 and self-mutilation. 8 We present the case of a patient with neu...