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: Pathology
[{'content': 'Pathologic features of brain in AIDS are all,except - \nSelect and explain. \nA. Perivascular giant cell invasion, B. Microglial nodules, C. Vasculitis, D. Temporal lobe infarction', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Other characteristic pathologic feature of CNS in AIDS are :\n\nDiffuse and focal spongiform changes\nVacuolar myelopathy of post column of the spinal cord.\nMajor cells affected are macrophages and monocytes.\nThe most characteristic finding is chronic inflammatory reaction with widely distributed infiltrates of microglial nodules.\n"Unlike most other viral encephalitides, HIV does not seem to infect neurons and perivasculitis is conspicuously\xa0absent"\xa0\xa0\xa0- page 2728, 10thie ANDERSON pathology.\n"Characteristic multinuclear Giant Cells of macrophage origin are seen in a deep white matter of frontal and temporal lobes particularly in perivascular location" - page 10th/e Anderson.', 'role': 'assistant'}]