Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest . The lungs are well - expanded and clear . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is mild to moderatly enlarged , consistent with cardiomegaly and / or pericardial effusion . No plumonary edema or pleural effusion is seen to suggest heart failure . The mediastinal veins are not dilated , indicating that if there is a pleural effusion it is not hemodynamically significant . The visualized osseous structures are unremarkable .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Cardiomediastinal silhouette is mild to moderatly enlarged . In this patient , this could represent cardiomegaly without heart failure or a non-hemodynamically significant pericardial effusion .