Figure 4d:

Images in a 65-year man with PCa (stage pT3bpN1, Gleason score 3+4 = 7). (a) Axial DW (b value, 1000 sec/mm²) MR image shows hyperintense, round, noncontinuous structure (white arrow) corresponding to hypointense structure on (b) corresponding apparent diffusion coefficient (ADC) map (ADC, 826 × 10−6 mm²/sec). (c) Coronal three-dimensional T2-weighted image (sampling perfection with application optimized contrasts using different flip-angle evolution, 640/47) confirms presence of round hypointense LN in internal iliac region on the left as well as on (d) axial three-dimensional T2-weighted image corresponding to LN metastasis. A second large LN (black arrow) shows presence of fat, is elongated and also presents hyperintense pattern on the DW image (a). However, average ADC of this LN is 1082 × 10−6 mm²/sec and it is not metastatic.