Radiologic Examination of the Orohypopharynx and Esophagus

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The esophagus, often perceived as a simple tube, is actually a complex organ with significant functional roles. Disorders affecting the esophagus are not limited to typical gastrointestinal issues; they also involve unique functional mechanisms at the pharyngoesophageal and esophagogastric junctions. Various disorders, including congenital and developmental abnormalities, can impact the esophagus, some of which are quite complex. Trauma and infections are relatively common, while neoplasms, though few in types, are often seen, with carcinoma being the most serious for survival. Collagen disorders like scleroderma and dermatomyositis frequently affect the esophagus. Other conditions, such as achalasia and varices, occur with varying frequency. Functional abnormalities related to swallowing, particularly spasms at the pharyngoesophageal and esophagogastric junctions, are prevalent and pose significant challenges for many patients. Over the years, anatomical, radiological, and physiological studies have yielded crucial insights into these structures, enhancing our understanding of esophageal disorders and their complexities.