Inferior mesenteric arteriovenous fistula during treatment with bevacizumab in colorectal cancer patient: A case report

Figure 1 Colonoscopy showed abnormal colonic edematous mucosa with multiple ulcers from the sigmoid colon, distal to the anastomotic site, to the rectosigmoid colon and rectum below the peritoneal reflection. A: Mild inflammation in the anastomotic site; B: Severe inflammation with multiple ulcers and edematous mucosa in the sigmoid colon; C: Rectum below the peritoneal reflection with almost normal findings.