Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is status post median sternotomy , mitral valve replacement and left - sided defibrillator are unchanged . Moderate cardiomegaly . Ill - defined nodular and hazy opacities are seen throughout the right lung , are unchanged and can be asymmetric pulmonary edema or infection . There is a small left effusion . Pleural effusion or pneumothorax is identified .
    OUTPUT:
    
Moderate cardiomegaly . Ill - defined nodular and hazy opacities are seen throughout the right lung , are unchanged and can be asymmetric pulmonary edema .