Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable AP chest radiograph demonstrates interval placement of a left pectorally placed biventricular ICD . The leads appear intact and project over the expected location of the right and left ventricle . There is no pneumothorax . There is severe cardiomegaly without evidence of overt pulmonary edema . Bowel replacement are identified as are median sternotomy wires . Previously seen right pleural effusion is decreased in size .
    OUTPUT:
    
Severe cardiomegaly with interval placement of biventricular ICD , its leads which project over the right and left ventricles . No pneumothorax .