“…Pneumothorax or tension pneumothorax is also a recognized complication of anti-reflux surgery and occurs when there is a breach in the pleura during mobilization of the distal oesophagus from the hiatus [ [5] , [6] , [7] ]. It commonly presents during the surgery itself or in the immediate post-operative period and is treated with the placement of an ICC [ [7] , [8] ]. A paraoesophageal hernia mimicking a pneumothorax or tension pneumothorax in the adult is a rare phenomenon and only a few cases have been cited in the literature [ [9] , [10] , [11] , [12] , [13] ].…”