This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
Chorea with Schizophrenic symptoms, diagnosis is: 
Select and explain. 
A. Cruetzfeld Jacob disease, B. Lewybody disease, C. Parkinson's disease, D. Huntington's disease
D: Huntington's disease
Answer: D: Huntington's disease 
Explanation: (D) Huntington's disease# Huntington's disease> Huntington's disease, also called Huntington's chorea, chorea major, or HD, is a genetic neurological disorder characterized after onset by uncoordinated, jerky body movements called chorea and a decline in some mental abilities, which can lead to affected aspects of behavior.> Physical The most characteristic symptoms are jerky, random, and uncontrollable movements called chorea, although, in a few cases, very slow movement and stiffness (called bradykinesia and dystonia) can occur instead, these can also become more prominent in later stages of the disorder.> Cognitive Selective cognitive abilities are impaired progressively. Specially affected are executive functions which include planning, cognitive flexibility, abstract thinking, rule acquisition, initiating appropriate actions and inhibiting inappropriate actions> Psychiatric These symptoms vary far more than cognitive and physical ones, and may include anxiety, depression, a reduced display of emotions (blunted affect), egocentrism, aggression, and compulsive behavior, which can cause, or worsen addictions, including alcoholism and gambling, or hypersexuality.