Colon Ischemia - Diagnosis Algorithm Mild disease - Typical symptoms of Cl with none of the associated risk for outcome that are seen in moderate disease Moderate disease - Any patient suspected of Cl with up to three of the risk factors associated with poor outcome (listed below). Severe disease - Any patient of Cl with more than three of the criteria for moderate disease' or any of the following: peritoneal signs on physical examination, pneumatosis or venous gas on radiologic imaging, gangrene on colonoscopic examination and pan-colonic or IRCI involvement on imaging by colonoscopy or CT #Colon #Ischemia #Diagnosis #Algorithm #gastroenterology