Severe Henoch-Schönlein purpura with infliximab for ulcerative colitis

Figure 1 Colonoscopy and histological finding in a ulcerative colitis patient. A: Colonoscopy demonstrated severe mucosal congestion and edema, multiple hemorrhage and ulcerations in the descending colon; B: Histological section revealed extensive infiltration of immune cells, cryptitis and glandular distortion in the inflamed colon.