Figure 2a:

Images in a 64-year man with PCa (stage pT3bpN1, Gleason score 4+4 = 8). (a) Reconstructed axial T2-weighted MR image (640/47) shows LN in external iliac region on the right (arrow) before and (b) 36 hours after intravenous administration of ferumoxtran-10 with lack of contrast medium uptake (no signal change) suspicious for a LN metastasis. (c) Axial DW (b value, 1000 sec/mm²) MR image after ferumoxtran-10 administration shows hyperintense round structure (arrow) corresponding to LN metastasis at histologic examination.