Symptom Checker - Right Atrium Enlargement 

​The differential diagnosis of right atrium enlargement / causes of right atrium enlargement are :
-atrial septal defect
-tricuspid regurgitation 
-anomalous pulmonary venous drainage to right atrium 
-tricuspid stenosis
-right ventricular failure 
-pulmonary hypertension
-Ebstein’s anomaly
-right atrial myxoma
-restrictive cardiomyopathy
-sinus of valsalva fistula 
-endomyocardial fibrosis 
-arrhythmogenic right ventricular dysplasia