| Omental infarct: CT imaging features. | |
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MedLine Citation:
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PMID: 16897277 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The aim of this study is to describe the contrast enhanced CT features of acute omental infarction and to study the evolutionary changes on follow-up CT imaging. Fifteen cases of omental infarction were evaluated for their initial CT imaging features. The imaging features evaluated included size of the fatty lesion, location, peripheral rim, and relation to colon. CT findings were correlated with etiology, clinical presentation, and leukocytosis. In eight patients follow-up CT images were available and the imaging features studied. Eight omental infarcts were of unknown etiology and seven were secondary to abdominal surgery. In 53% (8/15) patients the location of the omental infarct was in the right lower, mid, or upper quadrant. These eight right-side infarcts included six patients with primary omental infarcts. In 13 of the 14 patients where the CT was performed within 15 days of onset of omental infarct, the margin of the lesion was ill defined. Primary omental (n = 8) infarcts were seen in younger patients (p = 0.02) and were larger on CT (p = 0.02), compared to secondary omental infarcts. The CT findings evolved from ill-defined, heterogeneous fat density lesion to well-defined heterogeneous fat density lesion with peripheral hyperdense rim in all six secondary omental infarctions where both acute-stage and follow-up CT scans were available for interpretation. There was a significant difference in the age distribution and CT findings in terms of the size of the omental infarction between primary and secondary etiologies. On follow-up CT, the secondary omental infarcts progressively decreased in size and developed a well-defined hyperdense rim around a fatty core. |
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Authors:
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A K Singh; D A Gervais; P Lee; S Westra; P F Hahn; R A Novelline; P R Mueller |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2006-8-8 |
Journal Detail:
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Title: Abdominal imaging Volume: - ISSN: 1432-0509 ISO Abbreviation: Abdom Imaging Publication Date: 2006 Aug |
Date Detail:
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Created Date: 2006-8-9 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9303672 Medline TA: Abdom Imaging Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Division of Emergency Radiology, Massachusetts General Hospital, 55 Fruit Street, Boston, MA, 02114, USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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