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Peritoneal Cavity
Siva P. Raman, MD; Michael P. Federle, MD, FACR
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TERMINOLOGY

  • Definitions

    • Peritoneal cavity: Potential space in abdomen between visceral and parietal peritoneum, usually containing only small amount of peritoneal fluid (for lubrication)
    • Abdominal cavity: Not synonymous with peritoneal cavity but encompasses entire space between abdominal wall musculature, below diaphragm, and above (arbitrarily) pelvic brim
      • Contains all intraperitoneal and retroperitoneal abdominal viscera

GROSS ANATOMY

  • Peritoneum

    • Divisions of Peritoneal Cavity

      • Mesentery

        • Omentum

          • Peritoneal Ligaments

            • Peritoneal Folds

              • Peritoneal Recesses

                ANATOMY IMAGING ISSUES

                • Imaging Pitfalls

                  CLINICAL IMPLICATIONS

                  • Clinical Importance

                    Related Anatomy
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                    Related Differential Diagnoses
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                    References
                    Tables

                    Tables

                    TERMINOLOGY

                    • Definitions

                      • Peritoneal cavity: Potential space in abdomen between visceral and parietal peritoneum, usually containing only small amount of peritoneal fluid (for lubrication)
                      • Abdominal cavity: Not synonymous with peritoneal cavity but encompasses entire space between abdominal wall musculature, below diaphragm, and above (arbitrarily) pelvic brim
                        • Contains all intraperitoneal and retroperitoneal abdominal viscera

                    GROSS ANATOMY

                    • Peritoneum

                      • Divisions of Peritoneal Cavity

                        • Mesentery

                          • Omentum

                            • Peritoneal Ligaments

                              • Peritoneal Folds

                                • Peritoneal Recesses

                                  ANATOMY IMAGING ISSUES

                                  • Imaging Pitfalls

                                    CLINICAL IMPLICATIONS

                                    • Clinical Importance