Chinese name: aortic dissection English name: aortic dissection English name: aortic dissectin ghematoma aortic dissecting aneurysm Aortic dissection refers to a hematoma formed when blood in the aortic lumen enters the middle layer of the aortic wall through a breach in the intima, not a dilatation of the aortic wall. The condition used to be called aortic dissecting aneurysm, but is now more commonly referred to as aortic dissecting ghematoma, or aortic dissection, or aortic dissection.