Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . No prior . The lungs are clear without confluent consolidation or effusion . Cardiac silhouette is enlarged . Dense atherosclerotic calcifications noted at the arch . Surgical clips project just superior to the thoracic inlet . Osseous and soft tissue structures are otherwise unremarkable .
    OUTPUT:
    
Cardiomegaly without definite acute cardiopulmonary process .