Perforation of the excluded segment without pneumoperitoneum following Roux-en-Y gastric bypass surgery: case report and literature review.

Background: Because of the increasing prevalence of obesity and bariatric surgery (Roux-en-Y gastric bypass (RYGB) as the gold standard), there is a still growing population of people with altered post-operative anatomy. Although the most common early and late complications following RYGB are well known, they can still be difficult to diagnose. The altered anatomy after RYGB can create a real diagnostic and therapeutic challenge since routine examinations can be negative.

Acute post-traumatic tension gastrothorax, a tension pneumothorax-like injury.

Diaphragmatic rupture is an uncommon and frequently missed complication in blunt thoraco-abdominal trauma. Symptoms usually become apparent in a delayed phase, up to years after the trauma. An acute presentation is extremely rare and acute tension gastrothorax in which trapping of air in the intrathoracic stomach causes mediastinal shift and lung compression, as in tension pneumothorax, is exceptional.