Fig. 10From: Post-treatment MRI aspects of photodynamic therapy for prostate cancerPeriurethral enhancement ring. Day-7 post-treatment axial T1 FS contrast-enhanced MR images for a bilaterally treated patient show necrosis in both lobes. The intraprostatic urethra presents a continuous enhancement ring (a). A rupture of this ring enhancement (arrowhead) after photodynamic therapy is considered suspicious of urethral wall necrosis (b). No urinary complications were identified in this patient during close clinical follow-upBack to article page