FIG 3. Axial MR images obtained 36 hours after the intravenous administration of 2.6 mg. Fe/kg ferumoxtran-10 in the same volunteer as in Figure 2.

A, Gradient-echo (FFE-80) (120/7.8/1, 80° flip angle) image shows that the benign node is now homogeneously hypointense (white arrow). Note the multiple additional nodes, some of which are delineated by black arrows, all of which are better visualized now than before contrast enhancement.

B,T2-weighted (3500/120/1) image obtained at the same level as Figure 1B shows excellent contrast between the enhanced left submandibular node (arrow) and the subcutaneous fat.