Figure 26: A - Proximal (Prox) and distal (Dist) ends of a giant aneurysm of the RCA in a patient with Kawasaki disease. The mid portion of the aneurysm was removed for histology. Note the severe stenosis of the RCA at the exit from the distal end of the aneurysm (arrow head). B Giant aneurysm of the distal LCA and LAD. The aneurysm has been opened lengthwise and divided transversly. The LCx is not involved.