Which of the following is not involved in Wernicke's Korsakoff psychosis: (A) Mamillary body, (B) Thalamus, (C) Periventricular Grey matter, (D) Hippocampus
Answer is D. Harrison's principles of internal medicine 17th edition. Pathology: preventricular lesions surround the 3rd ventricles,aqueduct and 4th ventricle; atrophy of mammillary bodies;amnestic defect is related to lesions in dorsal medial nuclei of thalamus.