Ulcerative colitis worsened after Clostridium difficile infection: Efficacy of infliximab

Figure 1 Pseudomembranous colitis in the ulcerative colitis patient. Colonoscopy image showing pseudomembranes in the descending colon, with a loss mucosal vascular pattern.

Figure 2 Colonic histology of Clostridium difficile infection superimposed on ulcerative colitis. Necrosis of superficial crypts with a dense infiltrate of neutrophils, fibrin, and cellular debris covering the mucosal surface.

Figure 3 Severe endoscopic aspect of ulcerative colitis. Ulcerations, loss of vascular pattern and edema of the mucosae were noted in the rectum.