Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . The lungs are clear of focal consolidation , large effusion or pulmonary vascular congestion . The cardiomediastinal silhouette is within normal limits , similar to prior . Atherosclerotic calcifications noted at the aortic arch .
    OUTPUT:
    
No acute cardiopulmonary process .