title: Aortic root dissection: M-shaped echocardiographic appearance of the dissecting intima.
mesh_terms: D000784:Aortic Dissection / Q000175:diagnosis*; D001014:Aortic Aneurysm / Q000175:diagnosis*; D004452:Echocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged