FIG 4.
Nodular enhancement pattern in “moderate” PRES. A 58-year-old man, on a multiple chemotherapy regimen for metastatic renal cancer with sepsis, developed seizures. The patient was hypotensive, with SBPmax and DBPmax of 92/67 mm Hg. The initial 3T MR imaging demonstrates moderate edema from PRES, graded moderate due to the degree of cerebellar and parieto-occipital edema on FLAIR (A and B); there is also nodular enhancement on postcontrast T1WI (C), demonstrated in multiple planes. D, On a follow-up MR imaging 7 days later, the enhancing cerebellar nodular lesions have resolved.