This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Organic mental disorders, Subject name: Psychiatry
Dementia is seen in all except 
Select and explain. 
A. Schizophrenia, B. Alzheimer's disease, C. Huntington's chorea, D. Pick's disease
A: Schizophrenia
Answer: A: Schizophrenia 
Explanation: Common causes of dementia are Parenchymatous brain diseases (Alzheimer&;s disease, Pick&;s disease, Parkinson&;s disease, Huntington&;s chorea, Lewy body dementia) Vascular dementia Toxic dementia- Psychotropic drugs Metabolic dementia- Wilson&;s disease Endocrine causes- Thyroid, parathyroid, adrenal dysfunction Deficiency dementia- Pernicious anaemia Dementia due to infections- Neurosyphilis Neoplastic dementia Traumatic dementia- Chronic subdural haematoma Hydrocephalic dementia- Normal pressure hydrocephalus (Ref: A sho textbook of psychiatry, Niraj Ahuja, 7th edition, pg no.24)