Fig. 2From: Differentiation of orbital lymphoma and idiopathic orbital inflammatory pseudotumor: combined diagnostic value of conventional MRI and histogram analysis of ADC mapsA female patient with idiopathic orbital inflammatory pseudotumor. Axial fat-saturated T2W image a shows a well-defined isointense mass in lacrimal fossa. Axial contrast enhanced T1W image b demonstrates significant enhancement, similar to that of extraocular muscles. Pixel-by-pixel colored ADC map c was obtained and then embedded with the axial DWI. The corresponding ADC histogram from VOI d a relatively flat peak and a slight tail on the right. Whole-tumor ADCmean was 0.730 × 10− 3 mm2/s, ADC10 was 0.590 × 10− 3 mm2/s, skewness was 0.73, and kurtosis was 0.80Back to article page