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: Radiology
Focal bilateral thalamic, posterior internal capsule showing hyperdensity and calcification in CT scan and extensive involvement of deep white matter is characteristic of 
Select and explain. 
A. Alexander's disease, B. Metachromatic leukodystrophy, C. Krabbe's disease, D. Multiple sclerosis
C: Krabbe's disease
Answer: C: Krabbe's disease 
Explanation: Krabbe's disease (globoid leukodystrophy).
Other features :

Hypodensity on T2 MRI.
Involve cerebellar white matter.