Abstract
Introduction: Adult Bochdalek hernia is one of the right-sided diaphragmatic hernias that less than 30 cases reported until now.Case: I herein report a 64-year-old female patient who had dyspnea, abdominal pain, and nausea. Primary imaging (thoracic and abdominal CT scan) showed a right-sided diaphragmatic hernia that was contained the liver and right colon. The patient underwent right posterior thoracotomy at first, so the 5*5 cm diaphragmatic defect was repaired. Due to peritonitis that happened after two days, a midline laparotomy was performed. Finally, it was cleared that the main problem was the obstructed and perforated descending colon mass that was presented with Bockdalek hernia. Unfortunately, she died.Conclusion It is important to determine the reason for the presentation of the symptomatic diaphragmatic hernia in adult patients. It should be considered that an increase of intra-abdominal pressure like the presence of obstructed colon mass can cause it.