Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The lungs are clear . There is no consolidation , effusion , or vascular congestion . Cardiac silhouette is enlarged , particularly the left atrium . Atherosclerotic calcifications noted at the aortic arch . The no acute osseous abnormality detected .
    OUTPUT:
    
Cardiomegaly without acute cardiopulmonary process .