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Related Experiment Videos

Extraperitoneal mass effect by ascites under tension.

J W Baer1

  • 1St. Luke's Roosevelt Hospital, Columbia University, New York, New York 10025.

Gastrointestinal Radiology
|January 1, 1990
PubMed
Summary
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Benign ascites can mimic extraperitoneal masses, presenting as mediastinal, retrogastric, or retroperitoneal masses. Computed tomography (CT) scans identified ascites as the cause in five symptomatic patients.

Area of Science:

  • Radiology
  • Medical Imaging
  • Abdominal Diseases

Background:

  • Benign ascites can lead to an extraperitoneal mass effect.
  • This effect occurs when ascites become loculated or peritoneal recesses enlarge under tension.

Purpose of the Study:

  • To investigate the role of computed tomography (CT) in identifying benign ascites as a cause of apparent extraperitoneal masses.
  • To describe the imaging findings in symptomatic patients.

Main Methods:

  • Retrospective review of five symptomatic patients.
  • Computed tomography (CT) examinations were utilized to assess the cause of apparent masses.

Main Results:

  • CT demonstrated ascites as the cause of an apparent mediastinal mass in one patient.

Related Experiment Videos

  • Ascites mimicked a retrogastric mass in one patient.
  • Ascites caused a retroperitoneal mass, displacing the right kidney anteriorly, in four patients.

    • Conclusions:

    • Benign ascites can present as various extraperitoneal masses on CT imaging.
    • CT is a valuable tool for differentiating ascites from true neoplastic or other masses.
    • Recognition of this phenomenon is crucial for accurate diagnosis and management.