Lessons learned: Preventable misses and near-misses of endoscopic procedures

Figure 1 Endoscopic visualization of the lesions near missed. A: Subtle flat squamous cell carcinoma was appreciated 2 cm below the upper esophageal sphincter; B: Malignant gastrointestinal stromal tumor treated with hemospray in proximal jejunum; C: Small submucosal carcinoid tumor in terminal ileum; D: 2 cm anal squamous cell cancer noted on rectal exam.

Figure 2 Gastrointestinal tract segments at risk for having lesions missed. A: Upper esophageal sphincter; B: Proximal jejunum; C: Terminal ileum; D: Anus.