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 overt pulmonary edema . The cardiomediastinal silhouette is unchanged . Atherosclerotic calcifications seen at the aortic arch . Median sternotomy wires again seen . Surgical clips projected over the right upper lung , new from prior .
    OUTPUT:
    
No definite acute cardiopulmonary process .