Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate the lungs are well expanded and clear . The heart is mildly enlarged . Otherwise , the cardiomediastinal silhouette is unremarkable . Multiple healed left rib fractures are noted . There is no pleural effusion , pulmonary edema , pneumothorax or focal consolidation . Degenerative changes of the bilateral shoulders are again seen .
    OUTPUT:
    
No acute cardiopulmonary process . Healed left rib fractures . Mild cardiomegaly .