Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Left chest wall AICD unchanged with leads extending to the region the right atrium and right ventricle . Lungs are clear without focal consolidation , large effusion or pneumothorax . There is no convincing evidence of congestion or edema . Mild cardiomegaly is noted . Mediastinal contour is normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
Mild cardiomegaly , otherwise unremarkable .