Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are provided . Lungs appear clear bilaterally , allowing for underpenetrated technique on the frontal radiograph . No effusion or pneumothorax . Cardiomediastinal silhouette is stable . Hardware in the lower C - spine noted . Otherwise , bony structures appear unremarkable .
    OUTPUT:
    
No acute findings . Stable mild cardiomegaly .