| 英文摘要 |
Esophageal diverticulum is a rare clinical condition, with an estimated prevalence of approximately one per 10,000 individuals. The etiology can be classified into congenital and acquired types. Current literature suggests that the pathogenesis is associated with elevated intraluminal pressure within the esophagus. During esophageal muscle contraction, localized pressure may cause protrusion of the esophageal wall, resulting in the formation of a saclike outpouching—an esophageal diverticulum.
This report presents a case of an asymptomatic patient in whom an esophageal diverticulum was identified incidentally via ultrasound during a self-paid health checkup. Common diagnostic modalities for esophageal diverticulum include chest radiography, esophagography, and computed tomography (CT). Among these, esophagography and CT are most effective in evaluating location, size, morphology, and confirming communication with the esophageal lumen. These imaging tools are particularly valuable for asymptomatic patients. On ultrasound imaging, esophageal diverticula typically appear as hypoechoic, mass-like lesions accompanied by various types of artifacts. In this case, a characteristic comet-tail artifact was observed. The lesion exhibited mobility and morphological changes during swallowing, suggesting dynamic interaction between the esophagus and the diverticulum and providing a valuable diagnostic clue. |
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