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FIG 4. 20-year-old man with benign lymphadenopathy in neck.
A, Axial T2-weighted MR image shows an inflammatory jugulodigastric node (arrow) with homogeneous signal intensity.
B, Axial diffusion-weighted MR image at b factor of 500 s/mm2 of benign lymphadenopathy (arrow) shows homogeneous hyperintensity.
C, Axial diffusion-weighted echo-planar MR image at b factor of 1000 s/mm2 of benign lymphadenopathy (arrow) shows a defined area of hyperintensity. An intermediate reduction in signal intensity on the image at b 1000 s/mm2 compared with the image at b 500 s/mm2 results in a moderate ADC (0.335 x 10-3 mm2/s).
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