Table 1.

NME (nonmass enhancement) features classified as probably benign or suspicious.

NME features	Probably benign NME	Suspicious NME
Distribution	Focal or regional	Linear or segmental
Internal enhancement	Heterogeneous or homogenous	Clumped or clustered ring
TIC	Medium-slow early enhancement with persistent delayed curve	Fast early enhancement and delayed plateau or washout pattern
DWI/ADC	Absent restricted diffusion	Present restricted diffusion