Fig. 5
A 67-year-old male patient, presented with irritative and obstructive lower urinary tract symptoms, his PSA level was 9.8 ng/ml. a T2 WI high-resolution pelvic MRI: a well-defined lesion (2 × 1.4 cm) at the right PZ at the level of mid gland with an abnormal hypointense T2WI SI. b DWI image showed restricted diffusion. c ROI on DTI image: (FA = 0.26), (MD = 0.85 × 10mm2/sec), d DTT map displays dense, orderly arranged fiber bundles without interruption that corresponds with low-grade prostate cancer. (e) Transrectal US and biopsy were done: an ill-defined suspicious hypoechogenic focal lesion at the right PZ (red arrow). f Histopathological biopsy: prostatic adenocarcinoma, moderately differentiated, combined Gleason score: (3 + 3 = 6). T2WI, T2-weighted imaging; FA, fractional anisotropy; DWI, diffusion-weighted imaging; DTT, diffusion tensor tractography. PZ: peripheral zone