This MRI scan was carried out in a patient with monocular visual loss.

a. Is this a T1 or T2 weighted MRI scan?

b. What abnormality is shown?

c. What is the most likely diagnosis?

 
Answer a
This is a T1 weighted scan. The CSF is black in T1 weighted and white in T2 weighted scan.
 

Answer b Periventricular lesions seen as whitish lesions.

 

Answer c Demyelination such as multiple sclerosis