Fig 4. A 45-year-old woman with a history of alcohol abuse had changes in consciousness and ocular abnormalities.

A, No signal intensity alterations are seen on axial T2-weighted (2500/90/2 [TR/TE/NEX]) image at the level of the mamillary bodies and periaqueductal area. No alterations are seen on T2-weighted image at the level of the basal ganglia (not shown).

B, After administration of contrast media, contrast enhancement of the mamillary bodies is demonstrated (white arrows) on axial T1-weighted (532/15/2 [TR/TE/NEX]) image.