MYXOMA Cardiac myxomas be r ar, benign, slow growing uncreated cardiac tumours demonstrate most commonly in the septum of the go away atrium, although they put up find in any chamber of the randy state.1,2,3,4 Myxomas account for about 50% of all benign intercardiac tumors make them the most common.14,15,16,17,18 Approximately 70-85% of myxomas guide in the left atrium and the relaxation in the right atrium.1,2,5,7,9,10,11,12,13,14,16,17 very(prenominal) rarely one will come out in any ventricle.1,2,9,12,13,14,16 A very small part (10% or less) of myxomas are considered hereditary.1,6,7,9,10,17 Hereditary myxomas typically occur in men in their 20s.1,6 Non-hereditary myxomas most often occur in women between the ages of 30 and 60.6,10,15 Myxomas can appear white, gray, yellow, brown, or immature and can plod from 1 cm to 15 cm in size13,16 with the amount size being 5-6 cm.13 The tumor itself can either be gelatinous with a lobular surface, or more wish a firm round mass.7,32 The tumor is quite vascular and may be coated with thrombi.15 close to 30-50% of patients experience embolization to the brain, kidneys, eyes, or extremities.4,7,17 The left atrial myxomas often exclude from the upper helping of the septum and may prolapse by centre of the mitral valve during diastole.2,7 Although most myxomas are attached to the septum, they may in addition be attached to the surrounds of the heart chamber or the valves.
14,17 The tumors develop from the endocardium,13 are attached to the wall by a short broad-based attachment called a husk, and swing freely within the cardiac ch amber.6,12 The freely mournful tumor may th! en intermittently block the mitral valve obstructing blood go (this mimics mitral stenosis).6,10 When the patients stands up, gravity can also pull the myxoma into the scuttle of the mitral valve blocking blood flow into the ventricle.6 Mitral nauseant may occur if the tumor prolapses through the valve and prevents... If you want to regulate a full essay, order it on our website: OrderCustomPaper.com
If you want to get a full essay, visit our page: write my paper
No comments:
Post a Comment