Table 1.

Apparent diffusion coefficient (ADC) value (X 10⁻³ mm²/s) in 39 diffuse orbital masses.

	Number	Apparent diffusion coefficient ADC				Validation
		Median	25% quartile	Minimum	Maximum
Benign	22	1.19	0.73	0.5	1.95	M-W U test p 0.001
Premalignant	2	0.83	0.7	0.7	0.92
Malignant	15	0.58	0.48	0.45	0.72
Lymphomas	11	0.51	0.48	0.45	0.60	M-W U test p = 0.02
Others lymphatic lesion	7	0.9	0.7	0.5	1.72	–