Fig. 27.
Hypoglycemic encephalopathy. A 60-year-old diabetic woman with an old right occipital infarction tried to commit suicide by overdosing on insulin. MRI performed 7 days after being admitted to the intensive care unit shows subtle patchy increased T2 signal in the bilateral caudate and lentiform nuclei (a), which is better appreciated on the zoomed-in axial T2 and FLAIR images (d, e). Increased T2-FLAIR signal intensity and restricted diffusion is also observed in both hippocampi (b, c). Zoomed-in axial T2 images of the hippocampal head nicely illustrate the increased T2 signal (f)