Huntington´s disease: schizophrenia-like symptoms pre-existing to abnormal movements and cognitive deficit

Huntington’s Disease (HD) is an heritage neuropsychiatric disorder that involved the striatal nucleus and its conections. Its classic clinical features are movement disorders (Chorea); Subcortical Dementia without aphasia; and non-cognitive psychiatric symptoms. The prevalence of these ones is about 35-70%, and usually they are insufficiently explored by clinicians.
A clinical case of a 55 years old woman is presented. The genetic diagnosis of HD was played when the patient was 47 years old. Previously, a diagnosis of schizophrenia was played at 32 years old. Psychotic symptoms were an hipothetical possible form of debut of HD, some years before of the eclossion of both movement disorders and dementia. We discuss clinical, epidemiological, physiopathological, diagnostic and therapeutics aspects of the case-report, emphasizing on different clinical psychiatric presentations usually seen in HD.