Clinical presentation

A 34-year-old man underwent gastroscopy to evaluate episodes of difficulty in swallowing. Gastroscopy revealed suspected extraluminal compression in the oesophageal–cardiac junction (fig 1). History of epigastric fullness was also noted. Abdominal ultrasonography revealed a cystic lesion between the left lobe of the liver and the oesophagus. Abdominal CT showed a 3 cm thoracoabdominal cystic mass that appeared to be contiguous with the diaphragmatic crura (fig 2). Laparoscopic exploration and resection of the cystic lesion were performed (fig 3). Removal …