Type I refers to?dissections?that propagate from the ascending aorta, extend to the aortic arch, and commonly, beyond the arch distally. Type II refers to?dissections?that are confined to the ascending portion of the aorta.?
CTA is theinvestigation of choice
t occurs when blood enters the medial layer of the aortic wall through a tear?in theintima,and tracks along the media,?forming a ?blood-filled channel within the wall (false lumen)
