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34 Possible Causes for Prominent Aortic Knob

  • Aortic Valve Stenosis

    History Aortic stenosis usually has an asymptomatic latent period of 10-20 years. During this time, the LV outflow obstruction and the pressure load on the myocardium gradually increase. Symptoms develop gradually. Exertional dyspnea is the most common initial complaint, even in patients with normal LV systolic[…][]

  • Thoracic Aortic Aneurysm

    A thoracic aortic aneurysm is an aortic aneurysm that presents primarily in the thorax. A thoracic aortic aneurysm is the "ballooning" of the upper aspect of the aorta, above the diaphragm. Untreated or unrecognized they can be fatal due to dissection or "popping" of the aneurysm leading to nearly instant[…][]

  • Ankylosing Spondylitis

    Ankylosing spondylitis (rheumatoid spondylitis, Marie-Strümpell disease, von Bechterew disease) is a chronic, inflammatory disorder primarily involving the sacroiliac joints, the axial skeleton, peripheral joints and entheses. The etiology of Ankylosing spondylitis is unknown, though genetic factors seem to be involved[…][]

  • Dissecting Aortic Aneurysm

    Use the above box to quickly switch to another disease Introduction A complex, genetic condition of turkeys linked to male sex and high growth rate. It has been suggested that degenerative changes in the wall of the artery and copper deficiency may be factors. A sudden noise or other cause of excitement can[…][]

  • Non-Cranial Giant Cell Arteritis

    SANDRA MESKIMEN, M.S.N., TONY D. COOK, M.S.N., and ROBERT L. BLAKE, JR., M.D., University of Missouri–Columbia School of Medicine, Columbia, Missouri Am Fam Physician. 2000 Apr 1;61(7):2061-2068. See related patient information handout on temporal arteritis and polymyalgia rheumatica , written by the authors of this article .[…][]

  • Marfan Syndrome

    Marfan syndrome is an autosomal dominant disorder of the connective tissue. It was first described by the French pediatrician Antoine Marfan in 1896. There are more than 25-30 different signs and symptoms in Marfan syndrome which can be of variable intensity and differ from patient to patient. Some people may[…][]

  • Traumatic Aortic Rupture

    Traumatic aortic rupture refers to a condition in which there is a tear or rupture of the aorta. It is caused by motor vehicle accidents or severe falls and the majority of affected individuals dies at the scene. Patients who are admitted with TAR generally show symptoms of severe hemorrhage and cardiovascular[…][]

  • 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[]

  • Familial Thoracic Aortic Aneurysm 9

    Noninvasive Imaging TAAs are often noted incidentally on chest x-ray as a widened mediastinum or a prominent aortic knob.[]

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