Fig. 28
From: Post-treatment MRI aspects of photodynamic therapy for prostate cancer
Recurrence seen on MRI. Right photodynamic therapy in a patient with Gleason 6 adenocarcinoma. Six-month post-treatment axial T2 (a) image shows a hypointense nodule of the right peripheral prostate and the axial dynamic contrast-enhanced (b) image illustrates an early enhancement after gadolinium injection of the nodule suggestive of recurrence (arrowhead). Low-power (c) and high-power (d) pathology slides of a right base prostate biopsy show small irregular glands lined by a single layer of cells, confirming the presence of an infiltrating Gleason 7 adenocarcinoma with perineural invasion