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
IOC for mesial temporal sclerosis is 
Select and explain. 
A. CECT, B. MRI, C. PETCT, D. USG
C: PETCT
Answer: C: PETCT 
Explanation: MRI is the IOC.
Feature :

Hippocampal atrophy.
Atrophy of ipsilateral mammillary body, fornix.