Fig. 7

A 58-year-old patient with low-volume, low Gleason score 3 + 3 = 6 tumour in the right mid-peripheral zone undergoing MRI prior to repeat biopsy because of rising PSA. Axial T2W TSE (a) image demonstrates a low T2 SI nodule in the left TZ (thick white arrow). The nodule is predominantly homogeneously of low T2W SI but demonstrates a small focus of cystic change anteriorly (arrowhead). Note that the nodule is round and demonstrates a continuous low T2W SI rim (thin white arrow). The nodule demonstrates restricted diffusion, increased SI on trace b1000 mm²/s EPI (b) and low SI on the ADC map (c) (thick white arrows). Note that cystic change demonstrates T2 shine-through (arrowhead). Imaging findings are characteristic of a mixed but predominantly stromal BPH nodule