FIG 1. Subject 6. A, T1-weighted image (450/14/1) showing slightly swollen right frontal cortex and no signal change.

B, T2-weighted image (2050/91/1) depicting a ring of signal hyperintensity in right frontal cortex.

C, Isotropic diffusion-weighted image revealing a more hyperintense right frontal cortex than B.

D, ADC showing corresponding decrease suggesting cytotoxic edema.