AMYLOIDOSIS
In this case, the left and right coronary systems were normal
click here to see the left coronaries
click here to see the right coronaries
The LV is clearly myopathic, and if you look closely, you can see regurgitation into a very large left atrium.
This is abnormal myocardial tissue with deposits of amyloid. If the muscle is taken over my non-stretching tissue, this creates a restrictive filling defect for the heart.
Courtesy Braunwalds 8th edition
