Restrictive and constrictive cardiomyopathy occurs together in
High-Yield Explanation
The etiologies of RCM may be grouped into broad categories as follows: Primary/idiopathic: Endomyocardial fibrosis (EMF), loeffler eosinophilic endomyocardial disease Secondary: Infiltrative, amyloidosis (the most common cause of RCM in the United States), sarcoidosis , progressive systemic sclerosis (scleroderma) , hemochromatosis, , carcinoid hea disease, glycogen storage disease of the hea, radiation/treatment induced, metastatic malignancy, anthracycline toxicity Ref Davidson 23rd edition pg 467