This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
[{'content': "All are reversible causes of dementia except ? \nSelect and explain. \nA. Hypothyroidism, B. Hydrocephalus, C. Meningoencephalitis, D. Alzheimer's disease", 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Alzhimer's disease Reversible causes of dementia 1) Surgically treatable :- Normal pressure hydrocephalus, brain tumors (frontal lobe tumor), meningioma, subdural hematoma due to head injury, hydrocephalus. 2) Medically treatable :- Depression, hypothyroidism, alcohol abuse, vitamin B n/folate/Niacin deficiency, any metabolic or endocrine disturbance, neurosyphilis, Hashimoto's encephalopathy, Wilson's disease, celiac disease, whipple's disease, chronic meningoencephalitis, drugs and toxin (toxic dementia). Irreversible causes of dementia :- Alzheimer's disease, vascular (multi-infarct) dementia, Parkinsonism, Huntington's chorea, Lewy body dementia, Pick's disease.", 'role': 'assistant'}]