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Related Experiment Videos

Omental infarct: CT imaging features.

A K Singh1, D A Gervais, P Lee

  • 1Division of Abdominal Imaging and Interventional Emergency Radiology, Massachusetts General Hospital, Boston, Massachusetts 02114, USA. pallaviajay@hotmail.com

Abdominal Imaging
|February 9, 2006
PubMed
Summary
This summary is machine-generated.

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Acute omental infarction shows specific features on contrast-enhanced computed tomography (CT). Follow-up CT imaging reveals evolutionary changes, particularly a shrinking lesion with a hyperdense rim in secondary cases.

Area of Science:

  • Radiology
  • Abdominal Imaging
  • Gastrointestinal Radiology

Background:

  • Acute omental infarction is a rare cause of abdominal pain.
  • Contrast-enhanced computed tomography (CT) is crucial for diagnosis.
  • Understanding CT features and evolution aids clinical management.

Purpose of the Study:

  • To describe contrast-enhanced CT features of acute omental infarction.
  • To analyze the evolutionary changes on follow-up CT imaging.
  • To correlate CT findings with etiology and clinical presentation.

Main Methods:

  • Retrospective review of 15 cases of omental infarction.
  • Evaluation of initial CT imaging features including size, location, and rim characteristics.
  • Correlation of CT findings with etiology, clinical presentation, and leukocytosis.

Related Experiment Videos

  • Analysis of follow-up CT images in eight patients.

    • Main Results:

    • Omental infarcts were primary (unknown etiology) or secondary to abdominal surgery.
    • Right-sided infarcts were more common in primary cases.
    • Acute lesions often presented as ill-defined, heterogeneous fat-density masses.
    • Follow-up CT showed evolution to well-defined lesions with peripheral hyperdense rims, especially in secondary infarcts.

    Conclusions:

    • Significant differences exist in age distribution and CT size between primary and secondary omental infarcts.
    • Follow-up CT demonstrates progressive shrinkage and rim development in secondary omental infarcts.
    • CT imaging is valuable for characterizing omental infarction and its evolution.