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25 Possible Causes for Prominent Aortic Knob

  • Ankylosing Spondylitis

    There are few cases of spinal cord injury with ankylosing spondylitis (AS). This study investigated the clinical results of a spinal cord injury with a fracture in elderly patients with AS. Nine patients who had sustained a spinal cord injury with vertebral fractures in ankylosed spines were included in this study. The[…][]

  • Thoracic Aortic Aneurysm

    Overview A thoracic aortic aneurysm is a weakened area in the upper part of the aorta. The aorta is the major blood vessel that feeds blood to the body. A thoracic aortic aneurysm may also be called thoracic aneurysm and aortic dissection (TAAD) because an aneurysm can lead to a tear in the artery wall[…][]

  • Aortic Valve Stenosis

    Aortic stenosis In the center an aortic valve with severe stenosis due to rheumatic heart disease . The valve is surrounded by the aorta . The pulmonary trunk is at the lower right. The right coronary artery , cut lengthwise, is at the lower left. The left main coronary artery , also cut lengthwise, is on the[…][]

  • Dissecting Aortic Aneurysm

    Chronic disseminated intravascular coagulation (DIC) is a rare but critical complication of aortic aneurysm, and can represent a difficult long-term management problem. Although surgical correction is the treatment of choice, alternative therapy is required for inoperable patients. We report herein a case of acute[…][]

  • Non-Cranial Giant Cell Arteritis

    I77 .6 Arteritis M31.0 Arteritis alérgica I77 .6 Arteritis de aorta, aórtica (no sifilítica) M31.4 Arteritis de aorta, arco o cayado A52.0 - I79.1 Arteritis de aorta sifilítica M31.4 Arteritis braquiocefálica M31.6 Arteritis de células gigantes NCOP M31.5 Arteritis de células gigantes con polimialgia reumática I67.7 Arteritis[…][]

  • Marfan Syndrome

    Marfan syndrome is a connective tissue disorder that can affect many organ systems. Affected patients present with orthopaedic manifestations of the syndrome during all phases of life. Pain caused by musculoskeletal abnormalities often requires definitive orthopaedic treatment. Orthopaedic surgeons must[…][]

  • Traumatic Aortic Rupture

    Traumatic aortic rupture , also called traumatic aortic disruption or transection , is a condition in which the aorta , the largest artery in the body, is torn or ruptured as a result of trauma to the body. The condition is frequently fatal due to the profuse bleeding that results from the rupture. Since the aorta[…][]

  • Patent Ductus Arteriosus

    History As discussed in Pathophysiology, the ductus arteriosus is always patent in the fetus if the cardiovascular system is otherwise normal. Normally, the ductus arteriosus closes functionally in the first 10-18 hours of life. Prematurity, perinatal distress, and hypoxia delay closure of the ductus arteriosus;[…][]

  • Discrete Fibromuscular Subaortic Stenosis

    The heart size is usually normal in children, but a dilated ascending aorta or a prominent aortic knob may be seen occasionally in valvular AS, resulting from poststenotic[]

  • Aorto-Left Ventricular Tunnel

    The aortic knob ( arrowheads ) is also prominent when there is significant aortic insufficiency.[] Fig. 10.4 Prominent ascending aorta ( arrows ) and aortic knob and cardiomegaly with a dilated left ventricle in an 11-year-old patient with a ventricular septal defect complicated[] This dilatation is caused by a poststenotic jet and increased blood flow volume from aortic regurgitation.[]

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