Endoscopic mucosal resection of Barrett’s esophagus detects high prevalence of subsquamous intestinal metaplasia

Figure 1 Esophageal endoscopic mucosal resection specimens demonstrating two morphologic subtypes of subsquamous intestinal metaplasia. A: Subsquamous intestinal metaplasia (SSIM) with no direct extension to the mucosa; B: SSIM penetrating through the overlying squamous epithelium and onto the luminal surface.

Figure 2 Esophageal endoscopic mucosal resection specimens demonstrating subsquamous intestinal metaplasia with high-grade dysplasia. HGD: High-grade dysplasia.