This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: JIPMER 2018, Subject name: Psychiatry
Reversible dementia is a feature of:- 
Select and explain. 
A. Alzheimer;s disease, B. Pick's disease, C. Multiinfarct dementia, D. Hypothyroidism
D: Hypothyroidism
Answer: D: Hypothyroidism 
Explanation: Reversible dementia causes- (1) Neurological conditions -Subdural hematoma, normal pressure hydrocephalus, intracranial tumors, intracranial abscess (2) Infectious cause - Meningitis, encephalitis, neurosyphilis, Lyme disease (3) Metabolic causes - Vitamin B 12 or folate deficiency, niacin deficiency, hyper and hypothyroidism, hyper and hypoparathyroidism (4) Others - Drugs, alcohol abuse , autoimmune encephalitis