👉 peritoneopericardial is a medical term used to describe surgical procedures that involve removing the abdominal cavity (peritoneum) from the abdomen and chest, or even part of it. It typically involves opening the abdomen through a small incision in the lower left quadrant of the abdomen. The peritoneal cavity is the space between the layers of the abdominal wall and is filled with fluid, which helps to cushion the organs inside. During this procedure, the peritoneum is removed using specialized