Aortic aneurysm. 3D computed tomography (CT) angiogram of an aneurysm (swelling) near the aortic arch of a 46-year-old man. This is a large aneurysm of the post-isthmic thoracic aorta. It measures 100 by 81 millimetres. An aneurysm is a blood-filled dilation in a blood vessel wall. It is caused by a weakening of the vessel wall, which may be caused by hardening of the vessel (atherosclerosis), high blood pressure or injury. If left untreated an aneurysm can rupture, which is often fatal. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Zephyr |
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