intraabdominalen

Intraabdominal is an anatomical term describing structures and spaces contained within the abdominal cavity. The term encompasses both the intraperitoneal (within the peritoneal lining) and retroperitoneal (behind the peritoneum) compartments. The abdominal cavity is bounded superiorly by the diaphragm and inferiorly by the pelvic brim, with the peritoneum forming a serous membrane that lines the cavity and covers many abdominal organs.

Anatomical organization includes intraperitoneal organs, suspended by mesenteries and omenta, such as the stomach, liver, spleen, and portions of the intestines. The retroperitoneal space contains organs including the kidneys, adrenal glands, pancreas (mostly), duodenum, and parts of the colon. The peritoneal cavity itself subdivides into the greater and lesser sacs, and fluid within (ascites) may accumulate under disease or injury.

Clinical relevance: Intraabdominal conditions span inflammation, infection, trauma, and malignancy. Peritonitis, intraabdominal abscesses, bowel obstruction, ischemia, and perforation are common emergencies. Imaging—especially computed tomography (CT)—plays a central role in diagnosis, with ultrasound used in selected patients. Management ranges from antibiotics and drainage to surgical exploration via laparoscopy or laparotomy. Intraabdominal pressure can rise in certain critical illnesses, potentially leading to abdominal compartment syndrome.

The term is used across surgery, radiology, and emergency medicine to describe pathophysiology, anatomy, and interventions within the abdomen.