atrial myxoma

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a·tri·al myx·o·ma

a primary cardiac neoplasm arising most commonly in the left atrium as a soft polypoid mucinous mass attached by a stalk to the atrial septum; it may resemble an organized mural thrombus. The symptoms may include cardiac murmurs, which change with alteration of body position and signs of mitral stenosis or insufficiency, with continuous danger of embolism by fragments of the tumor or its entire mass.
Farlex Partner Medical Dictionary © Farlex 2012

atrial myxoma

The most common of the rare, primary cardiac neoplasms.

Clinical findings
Symptoms may be obstructive (right-sided congestion), ± ascites, constitutional (fever, fatigue, arthralgias, myalgias, weight loss), Raynaud’s phenomenon, skin rash, clubbing of digits; related to embolism—shortness of breath, orthopnoea, paroxysmal nocturnal dyspnoea, fainting, palpitations, dizziness and syncope, pleuritic chest pain, haemoptysis. Age of onset 25–55.

2-D, transoesophageal echocardiography.
Excellent after excision.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

atrial myxoma

Cardiology The most common 1º cardiac neoplasm, age of onset 25-55 Clinical Symptoms may be obstructive–right-sided congestion—most are right-sided, ± ascites, constitutional–fever, fatigue, arthralgias, myalgias, weight loss, Raynaud's phenomenon, skin rash, clubbing of digits, and related to embolism–SOB, orthopnoea, paroxysmal nocturnal dyspnea, fainting, palpitations, dizziness and syncope, pleuritic chest pain, hemoptysis Diagnosis 2-D, transesophageal echocardiography Management Excision Prognosis Excellent after excision
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Among the solid malignancies (n=13, 65%), the majority were the lung (n=2), carcinoma breast (n=2), and hepatocellular carcinoma (n=2) including one case each of carcinoma stomach, pancreas, oral cavity, left atrial myxoma, and Ewing's sarcoma.
Atrial myxoma is the most frequent primary cardiac tumor, representing 30% to 50% of all cases.
Apart from arrhythmic causes, cardiovascular diseases such as aortic valve stenosis, hypertrophic cardiomyopathy, atrial myxoma, pulmonary embolism, and myocardial infarction may cause syncope as a result of decreased cardiac output.
lactis in a patient with atrial myxoma: a case report," Diagnostic Microbiology and Infectious Disease, vol.
Pan, "Left atrial myxoma with versus without cerebral embolism: length of symptoms, morphologic characteristics, and outcomes," Texas Heart Institute Journal, vol.
Michler, "Radical excisional therapy and total cardiac transplantation for recurrent atrial myxoma," The Annals of Thoracic Surgery, vol.
In one case series of 74 patients, atrial myxoma first presented as stroke in 16% of patients [8].
The previously noted LA mass measured 2.1 cm by 1.4 cm, appeared pedunculated and was attached to the left side of the interatrial septum with echogenic characteristics concerning for atrial myxoma (Figure 1).
Left atrial myxoma: pulmonary infarction caused by pulmonary venous occlusion.
Mitral valve recurrence of a left atrial myxoma. Eur J Cardiothorac Surg 2002; 21:568-73.
Pathology of Atrial Myxoma. Histological analysis of the atrial myxoma was performed by both hematoxylin and eosin (H&E) staining and via immunofluorescent microscopic examination.
Other differential diagnoses should include atrial myxoma,[sup][2] a gradually growing cardiac tumor, and hydatidosis,[sup][3] which would be supported by the presence of hydatid cysts in lungs and liver and positive serologic tests.

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