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Figure 3: Transverse MR images of right frontal region lymphoma in 69-year-old woman. With proposed strategy, this would be lymphoma because of enhancement, restricted diffusion, and absence of necrosis. A, Fluid-attenuated inversion-recovery (10 000/120; inversion time, 2200 msec; field of view, 220 mm; matrix, 256 x 256; section thickness, 5 mm; intersection gap, 0 mm; number of signals acquired, two) and, B, contrast-enhanced T1-weighted spin-echo (600/11; field of view, 220 mm; matrix, 256 x 256; section thickness, 5 mm; intersection gap, 0 mm; number of signals acquired, one) transverse images demonstrate enhancing mass (*) with hyperintense surrounding edema (arrowheads). C, ADC map and, D, diffusion-weighted image (10000/118; b values, 0 and 1000 sec/mm2) show restricted diffusion where lowest ADC obtained was 0.86 x 10–3 mm2/sec.
