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Fig. 2A Pathologically proven benign lymph node in 62-year-old man
with prostate cancer. Unenhanced (A) and ferumoxtran-10-enhanced
(B) T2*-weighted gradient-refocused echo images of pelvis
show 8-mm lymph node (arrow) with prominent hilum. Less-experienced
reviewer 1 required both unenhanced and contrast-enhanced images to make
correct diagnosis, whereas more-experienced reviewer 2 was able to
characterize node as benign on basis of contrast-enhanced image alone.