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The Peritoneum: Anatomy, Pathologic Findings, and Patterns of Disease Spread
Ayman H Gaballah1, Maged Algazzar1, Irfan A Kazi1
1From the Department of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Houston, TX 77030 (A.H.G., M.B., K.M.E.); Department of Radiology, University of Menoufia, Menoufia, Egypt (M.A.); Department of Radiology, University of Missouri, Columbia, Mo (I.A.K., E.A.S.M.); Department of Radiology, Vanderbilt University Medical Center, Nashville, Tenn (N.P.G.); Department of Radiology, Cork University Hospital, Cork, Ireland (J.S.); Department of Radiology, Cleveland Clinic, Cleveland, Ohio (P.S.L.); and Department of Diagnostic Imaging, Mayo Clinic, Jacksonville, Fla (M.H.).
Understanding abdominopelvic disease spread patterns is crucial for diagnosis. Recognizing how conditions like pancreatitis or neoplasms spread helps radiologists identify the origin and guide patient management.
Area of Science:
- Radiology
- Anatomy
- Pathology
Background:
- The abdominopelvic cavity is anatomically divided into spaces by fascial planes and ligaments.
- Disease processes in the abdomen and pelvis can spread through predictable pathways.
- Understanding these pathways is essential for accurate diagnosis and patient management.
Purpose of the Study:
- To elucidate the predictable patterns of disease spread within the abdominopelvic cavity.
- To emphasize the importance of understanding peritoneal anatomy and disease pathways for radiologists.
Main Methods:
- Review of anatomical landmarks and fascial planes in the abdominopelvic cavity.
- Analysis of disease spread patterns for various pathologic conditions (traumatic, inflammatory, infectious, neoplastic).
- Correlation of disease spread with organ of origin and anatomical boundaries.
Main Results:
- Disease spread typically follows predictable patterns along fascial planes and anatomic landmarks.
- Different pathologies exhibit distinct spread characteristics (e.g., pancreatitis vs. neoplasms).
- Recognizing spread patterns aids in identifying the disease origin when not immediately apparent.
Conclusions:
- A comprehensive understanding of abdominopelvic anatomy and disease spread is critical for diagnosis, staging, and prognosis.
- Radiologists can utilize knowledge of spread patterns to determine the source of disease and guide further investigations.
- This understanding facilitates tailored follow-up imaging and improves patient care.
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