This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Radiology
The MR imaging in multiple sclerosis in the following illustration will show lesions in: 
Select and explain. 
A. White matter, B. Grey matter, C. Thalamus, D. Basal ganglia
A: White matter
Answer: A: White matter 
Explanation: Ans. A. White matterMultiple sclerosis is a demyelinating disorder. Hence the lesions will be seen in the white matter (due to loss of myelin).Sagittal T1-weighted MRI depicts multiple hypointense lesions in the corpus callosum; this finding is characteristic of multiple sclerosis.