Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral images of the chest demonstrate well - expanded lungs which are clear . There is no pneumothorax or pleural effusion . There is slight cardiomegaly noted . Cardiomediastinal silhouette is otherwise unremarkable . Visualized osseous structures are unremarkable .
    OUTPUT:
    
Mild cardiomegaly , otherwise normal chest radiographs .