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Medical Term:

atrial myxoma


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.

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.