Table 2.

MR imaging descriptors in NME (nonmass enhancement) lesions.

Descriptor	Malignant (n = 18) (%)	Benign (n = 45) (%)	p value
Distribution
Focal	4 (22.2)	24 (53.4)	0.023
Linear	0 (0.0)	11 (24.4)	0.01
Segmental	12 (66.7)	8 (17.7)	0.0001
Regional	0 (0.0)	2 (4.5)	0.08
Diffuse	2 (11.1)	0 (0.0)	0.078
Internal enhancement patterns
Heterogeneous	10 (55.5)	21 (46.7)	0.3
Clustered ring	4 (22.3)	0 (0.0)	0.001
Clumped	3 (16.7)	6 (13.3)	0.7
Homogeneous	1 (5.5)	18 (40)	0.007
Kinetic curve
Persistent	3 (16.7)	45 (100)	0.0001
Plateau	10 (55.5)	0 (0.0)	0.0001
Washout	5 (27.8)	0 (0.0)	0.0001
Diffusion restriction
Present	16 (89)	2 (11.1)	0.0001
Absent	2 (11)	43 (95.6)