Age: 27yr
Sex: Female
Complaints: Gait ataxia and ophthalmoplegia confusion.
Case study: Areas of symmetrical increased T2/FLAIR signal seen involving dorsomedial thalami, tectal plate, periaqueductal area, around 3rd ventricle, mammillary bodies, posterior medulla (in medial vestibular nuclei and hypoglossal nuclei) with corresponding subtle diffusion restriction.
Images:

T2WI shows hyperintense signal involving dorsomedial aspect of thalamus.

FLAIR sequence shows hyperintensity involving the medial aspect of thalamus
Conclusion : Imaging features suggestive of wernicke encephalopathy.