Fig. 2From: Comparison of different embolic particles for superior rectal arterial embolization of chronic hemorrhoidal bleeding: gelfoam versus microparticleAngiographic features of hemorrhoid artery in patients with internal hemorrhoids. a Subtracted arteriogram showing the rectal hypervascularization (white arrows); b The final arteriogram showing no visible vascularization of the inferior part of the rectum after embolization of both SRAs using coils and microparticles (white arrows)Back to article page