Thrombus fissuration sign (aortic aneurysm)

Thrombus fissuration is a sign of impending rupture of an aortic aneurysm. It reflects blood dissecting into the intramural thrombus. This sign is observed on contrast-enhanced CT as a linear contrast infiltration from the aneurysm lumen through the intramural thrombus. Thrombus fissurations extending from the aortic lumen to the aneurysm wall indicate increase in the wall tension and impending rupture of an abdominal aortic aneurysm.

Article information

rID: 45531
System: Vascular
Section: Signs
Tag: refs, refs
Synonyms or Alternate Spellings:
  • Thrombus fissurations

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Cases and figures

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