Cardiomegaly is seen in –

Causes of Cardiomegaly Myocardial disease Endocardial fibroelastosis                              o Glycogen storage disease Myocarditis (viral or idiopathic) Coronary artery diseases resulting in myocardial insufficiency Anomalous origin of the left coronary artery from the pulmonary artery Collagen disease (periaarteritis nodosa) Kawasaki disease Congenital heart defect with severe heart failure Miscellaneous conditions Congestive heart failure (CHF) secondary to respiraoty disease (upper airway obstruction, bronchopulmonary dysplasia) Supraventricular tachycardia with CHF Pericardial effusion Tumors of the heart Severe anemia Endocrine disorders (thyrotoxicosis, pheochromocytoma) Malnutrition (beriberi, kwashiorkor, carnitine deficiency) Sensitivity/toxic reactions (sulmonamides, doxorubicin) Muscular dystrophies Familial dilated cardiomyopathies