Myxoma | Organizing thrombus |
A pedunculated growth with a smooth Glistening and transparent surface | A stratified and friable surface |
Soft, gelatinous consistency | Granular, opaque exterior |
Absence of hemosiderin | Abundance of hemosiderin and fibrin |
Mucin positive | Absence of mucin |
Covered with intact endocardium | A wide base with underlying endocardial lesion |
Rooted into myocardium | A distinct demarcation from the myocardium |