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In medical pathology, dissection (or, incorrectly[according to whom?], dissecting aneurysm) refers to a tear within the wall of a blood vessel, which allows blood to separate the wall layers, creating a pseudoaneurysm.
- Aortic dissection (aorta)
- Coronary artery dissection (coronary artery)
- Carotid artery dissection (carotid artery)
- Vertebral artery dissection (vertebral artery)
Carotid and vertebral artery dissection are grouped together as "cervical artery dissection".
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