Eosinophilic colitis

Figure 1 Diagnostic findings in EC. Representative images from a case of a previously healthy 30-year-old man with recurring episodes of abdominal pain, non-bloody diarrhea, and peripheral eosinophilia; extensive workup confirming EC by exclusion; and excellent response to short-term steroid therapy. A and B: Abdominal CT shows circumferential colon wall thickening (arrows) and moderate ascites (asterisks); C-E: Colonoscopy reveals patchy areas in the colon with mucosal edema and punctate erythema; F and G: Histology indicates markedly increased tissue eosinophilia in all examined segments of the colon. HE stains, magnification 100 × and 400 ×, respectively.