Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Two portable views of the chest . Previous left PICC is no longer visualized . The lungs are clear of consolidation or effusion . There is no pulmonary vascular congestion . Cardiomediastinal silhouette is within normal limits . Some atherosclerotic calcifications noted at the aortic arch .
    OUTPUT:
    
No acute cardiopulmonary process .