FIG 4. 28-year-old man with complex partial seizures for 11 years.

A, The proton SVS study of the right hippocampus shows a low NAA peak, a high Cho peak, and a small NAA/(Cho+Cr) ratio (0.45).

B, The study of the left hippocampus has a normal spectral profile and a normal NAA/(Cho+Cr) ratio (0.58).

The T2-weighted MR images, 3000/85/1, also reveal abnormal hyperintensity in the right hippocampus.