Abstract
This chapter reviews normal esophageal anatomy and physiology as well as the fluoroscopic technique for evaluating esophageal motility on barium studies. We then discuss the clinical and radiographic findings associated with primary esophageal motility disorders (including achalasia, diffuse esophageal spasm, and nonspecific esophageal motility disorder) and secondary esophageal motility disorders caused by gastroesophageal reflux disease, scleroderma, and other systemic conditions.
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