CTICasesEsophageal Duplication Cyst
Imaging findings
Chest radiograph shows a subcarinal mediastinal mass. Barium esophagogram demonstrates a fixed extrinsic mucosal defect with obtuse margins. CT demonstrates a well-circumscribed, low-attenuation subcarinal mass adjacent to and compressing the esophagus. Pathological resection confirmed esophageal mucosa, diagnostic of an esophageal duplication cyst.
Key takeaways
Foregut duplication cysts include bronchogenic, esophageal duplication, and neurenteric cysts. Esophageal duplication cysts typically arise adjacent to the esophagus and are lined by gastrointestinal (esophageal) mucosa, containing double-layered smooth muscle. They can cause dysphagia due to extrinsic compression.
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