Table 2.

Clinical and echocardiographic features of left section thrombotic masses

Left section mass	Clinical/echocardiographic findings
Left atrial thrombus	Atrial fibrillation/flutter
	Isoechoic/hyperechoic intra-atrial, sessile, or mobile mass
	LAA echo-dense mass location
Prosthetic valve thrombus	Isoechoic/hyperechoic peri-/intravalvular sessile or mobile mass
	Lack of proper anticoagulation
	Prosthetic dysfunction (increased transvalvular mean CW Doppler gradient, restricted leaflet/disc motion, color Doppler aliasing effect, etc.)
LV thrombus	Isoechoic/hyperechoic mass with defined margins distinct from endocardial edge and mural attachment
	Apical location
	Wall motion-related abnormalities (hypokinesia and akinesia)
	Ischemic heart disease

LAA=Left atrial appendage, CW=Continuous wave, LV=Left ventricular