Type A | Calcification confined to LA appendage. Mitral stenosis is the underlying lesion often and is almost always associated with thrombus in the appendage |
Type B | Calcification confined to the free wall of left atrium and mitral valve and is seen in advanced mitral stenosis |
Type C | Small area of calcification confined to posterior wall of LA, results from the jet lesion of mitral regurgitation and termed as “McCallum’s patch” |