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Insights into Imaging
Fig. 18 | Insights into Imaging

Fig. 18

From: Multi-modality organ-based approach to expected imaging findings, complications and recurrent tumour in the genitourinary tract after radiotherapy

Fig. 18

A 68-year-old man with prior external RT and biochemical failure with subsequent transrectal ultrasound guided biopsy demonstrating Gleason score 8 recurrent tumour in the left mid and basal peripheral zone. Multi-parametric endorectal coil prostate MRI depicts atrophic prostate gland and seminal vesicles with low T2 signal intensity and poor delineation of prostate zonal anatomy on axial and coronal T2 TSE images (a, b and c) which are typical post-RT changes. There is an intermediate T2 signal intensity area in the left mid and basal peripheral zone (white arrows), which is bulging the prostate capsule. Diffusion-weighted images (d) with B0 and B1,000 and ADC map e demonstrate restricted diffusion in this location (open white arrows). Corresponding axial pre- and selected post-dynamic-contrast-enhanced GRE images with semi-quantitative contrast curves demonstrate corresponding early rapid enhancement with steep upslope (open white arrows in f) and contrast washout in the area of known recurrent tumour

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