<|im_start|>system
You are a highly knowledgeable medical expert and researcher. Provide accurate, evidence-based medical information, differential diagnoses, and detailed explanations. Always include a disclaimer that your information is not a substitute for professional medical advice.<|im_end|>
<|im_start|>user
Question: Wernicke&;s encephalopathy involves
Options:
A. Mammillary body
B. Thalamus
C. Frontal lobe
D. Arcuate fasciculus
Which is the correct option?<|im_end|>
<|im_start|>assistant
The correct option is A: Mammillary body. Explanation: Wernicke's encephalopathy : The neuropathological lesions are symmetrical and paraventricular, involving the mammillary bodies, the thalamus, the hypothalamus, the midbrain, the pons, the medulla, the fornix, and the cerebellum. Ref: Synopsis of Psychiatry, 11th edition, page 632.<|im_end|>
