Esophageal duplication cyst

Excerpt

A 46-year-old male patient was investigated for a 3-month history of dysphagia. Barium swallow (Fig. 1a) and upper gastrointestinal endoscopy showed a smooth mucosal bulge in the distal esophagus. Computed tomography (CT) showed a well-defined non-enhancing hypodense right paraesophageal mass (Fig. 1b) with negative Hounsfield units (HU −3 to −81). Thoracoscopic resection of the mass revealed mucinous cyst in the esophageal wall, confirmed to be foregut duplication cyst on histopathology. Esophageal duplication cysts very infrequently present in adulthood [1]. They may be asymptomatic or present with complications like infection, bleeding, or mass effect. Rarely, they may present with acute rupture or malignant transformation [2]. They are best treated with complete surgical or laparoscopic resection. They are usually confused with bronchogenic cysts. In this case, lipoma was a differential diagnosis due to the fat density of the lesion.

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