Fig. 19
From: Pitfalls in Interpreting mp-MRI of the Prostate: A Pictorial Review with Pathologic Correlation
MR images of a 68-year-old man with prostate-specific antigen progression (PSA serum level 0.67 ng/mL) after radical retropubic prostatectomy, with suspected local recurrence. a Axial T2-weighted fast spin-echo (6567/111) and b axial T2-weighted fast spin-echo fat saturated (7216/118) show on the zone previously occupied by the proximal portion of right seminal vesicle, a hyperintense nodular tissue (arrow). c Gradient-echo T1-weighted subtracted image and d colour DCE map shows a well-defined area of marked enhancement (arrow) on the same location as the solid nodular tissue seen on T2-weighted images. e Diffusion weighted images with a b value of 3.000 s/mm2 and f ADC map show a focal area of restricted diffusion (arrow) corresponding to the solid nodular tissue detected on T2-weighted images and the enhancing zone seen on dynamic contrast-enhancing images. These findings are consistent with local recurrence (white arrows)