Not affected by Wernicke&;s disease: (A) Hypothalamus, (B) Thalamus, (C) Hippocampus, (D) Mamillary bodies
Answer is C. In Wernicke&;s disease, neuropathologically, neuronal degeneration and haemorrhage are seen in thalamus, hypothalamus, mammillary bodies and midbrain. Ref: A Sho Textbook of Psychiatry, Niraj Ahuja, 7th Edition, pg. no.38