Esophageal Disorders

By completing this question set, you will be able to apply the dysphagia diagnostic framework to systematically distinguish oropharyngeal from esophageal dysphagia, and mechanical obstruction from motility disorder. You will identify the pathophysiology of GERD and trace its complications from esophagitis through Barrett's metaplasia to adenocarcinoma. You will apply the diagnostic algorithm for achalasia, interpret the barium and manometric findings, distinguish true from pseudoachalasia, and select appropriate treatment. You will differentiate DES from achalasia and scleroderma esophagus by manometric pattern and clinical presentation. You will distinguish the three esophageal infections by their endoscopic and histologic appearance in the context of the immunocompromised host. You will identify the EoE diagnostic criteria and treatment principles. You will differentiate Mallory-Weiss tear from Boerhaave syndrome by clinical presentation and direct the appropriate diagnostic study. You will compare SCC and adenocarcinoma of the esophagus by location, precursor lesion, and risk factors, and explain why the absence of serosa drives early spread.