Arterial dissection

Arterial dissection occurs when blood enters the media through a tear or ulcer in the intima and tracks along the media, forming a second blood-filled channel within the wall. The normal lumen lined by intima is called the true lumen and the blood-filled channel in the media is called the false lumen. The false lumen is at a higher pressure than the true lumen due to poor outflow.

Causes

In most cases the vessel wall is abnormal.

Locations

Share article

Article information

rID: 1230
System: Vascular
Tag: refs
Synonyms or Alternate Spellings:
  • Dissection
  • True lumen
  • False lumen

Support Radiopaedia and see fewer ads

Cases and figures

  • Drag
    Right
    Case 1: ICA dissection
    Drag here to reorder.
  • Drag
    Type A aortic dis...
    Case 2: Stanford type A aortic dissection
    Drag here to reorder.
  • Drag
    Case 3: aortic dissection
    Drag here to reorder.
  • Drag
    Case 3: aortic dissection
    Drag here to reorder.
  • Drag
    Case 4: coeliac artery
    Drag here to reorder.
  • Drag
    Case 5: aortic dissection in Marfan syndrome
    Drag here to reorder.
  • Updating… Please wait.
    Loadinganimation

    Alert accept

    Error Unable to process the form. Check for errors and try again.

    Alert accept Thank you for updating your details.