Chapter 23 The Gastrointestinal Tract

Glandular metaplasia of squamous epithelium (Barrett’s esophagus) carries increased risk of esophageal cancer. MUCOSAL TEARS. Retching and vomiting lacerates mucosa, which may bleed profusely. CARCINOMA OF ESOPHAGUS. Squamous cell carcinoma gradually narrows lumen. May invade trachea and cause fistula. FOOD IMPACTION ................
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