The appearance of the LA myxoma on M-mode mimics what other condition commonly seen with M-mode?
ruptured sinus of valsalva
cor triatriatum
mitral stenosis
flail leaflet
mitral stenosis
myxoma may be tethered in sucha way that it follows the flow from the LA into the LV. The myxoma then appears as a structure posterior to the anterior mitral leaflet and, depending on its density maybe thought to be a thickening of the mitral leaflet. 2D echo helps to define the structure