Fig. 11
From: Post-treatment MRI aspects of photodynamic therapy for prostate cancer
Residual necrosis. Six-month post-treatment MRI in a patient treated by left photodynamic therapy. Axial T1 FS contrast-enhanced (a) and axial T2-weighted images (b) show persistence of a low signal intensity area with no enhancement (arrowhead) corresponding to a small area of residual necrosis (coagulation necrosis). Pathology slides from biopsy at low (c) and high magnification (d) show loose connective tissue coreless, with cell ghosts, characteristic of coagulation necrosis