BioMed Research International / 2014 / Article / Fig 4

Review Article

Multiparametric MRI for Recurrent Prostate Cancer Post Radical Prostatectomy and Postradiation Therapy

Figure 4

Multiparametric-MR images obtained in a 69-year-old patient with TRUS-guided biopsy-proved PCa (Gleason score, 3 + 4) in the right apex-midgland after 14 months after external beam radiation therapy. (a) Axial T2-weighted fast spin-echo image shows shrinkage of the prostate gland which appears diffusely hypointense because of radiation induced atrophy and fibrosis. No suspicious foci are seen. (b) Axial gradient-echo T1-weighted subtracted image showing a remarkable nodular enhancement at the right apex-midgland (white arrow). (c) Axial native DWI image at value = 3,000 s/mm2 showing a focus with marked restricted diffusion (white arrow). (d) Axial ADC map reconstructed from images obtained at values of 0, 500, 1,000, and 3,000 s/mm2 shows a dark area corresponding to the hypervascular nodule (white arrow). All these findings are consistent with local recurrent PCa.
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