DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Post-operative abdominal scar. Close-up of the scar on a 75-year-old man's abdomen 10 days after surgery to repair an aortic aneurysm. An aneurysm is an abnormal dilation (ballooning) of an artery. It is caused by pressure of blood flowing through an area weakened by disease or injury. Aneurysms are extremely dangerous and immediate corrective surgery is very important. Here, surgery to repair the main artery of the body, the aorta, was carried out. The post-operative scar (long, thin) consists of new connective tissue produced by the body to heal the wound.
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