CTICasesEsophageal Achalasia and Giant Pulsion Diverticulum
[...]. Esophageal Achalasia and Giant Pulsion Diverticulum. CTICases. Published January 21, 2022. https://str-case-explorer.pages.dev/c/9hmtr
Imaging findings
Chest radiograph and CT show a large, air-fluid filled mass in the middle mediastinum displacing the trachea anteriorly. Esophagram confirms severe achalasia with a giant esophageal pulsion diverticulum arising from the distal esophagus.
Key takeaways
Esophageal achalasia causes chronic distal obstruction, increasing luminal pressure and predisposing patients to the formation of pulsion diverticula. These giant diverticula can present as air-fluid levels in the mediastinum on radiographs, mimicking hiatal hernias or mediastinal abscesses.
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