Aortic Dissection

**Definition:** A tear in the inner layer of the AORTA leading to interstitial HEMORRHAGE, and splitting (dissecting) of the aortic TUNICA MEDIA layer. It typically begins with a tear in the TUNICA INTIMA layer.

**Tree numbers:** - C14.907.055.448.250 - C14.907.109.070.500

**Synonyms:** - Aneurysm, Dissecting - Dissecting Aneurysm - Dissecting Aneurysm Aorta - Aortic Dissecting Aneurysm