Abstract
Two cases of aortic aneurysm complicating aortic coarctation with unusual rupture were reported. The first case is a 66-year-old female with aneurysm of the descending thoracic aorta. The coarctation of the aorta was located at lower thoracic aorta and the aneurysm was formed proxymal to the coarcta tion. The aneurysm protruded backwards being accompanied by osteolysis of ribs and finally ruptured extracorporeally at the left subscapular region. The second case is a 28-year-old male with mycotic aneurysm that occurred im mediately distal to the coarctation of the aorta. Streptococcus viridans was isolated by blood culture. The aneurysm was ruptured to the esophagus. The mechanisms of aneurysm formation in patients with coarctation of the aorta were discussed.
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