Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Lower lung volumes seen on the current exam . Increased opacities at the lung bases , with lack of visualization of the diaphragms . This may be due to chronic process of the lung bases . The diaphragm is not well seen likely due to patient 's lordotic positioning . Cardiac silhouette is enlarged but likely unchanged given differences in positioning . Median sternotomy wires and mediastinal clips are again noted . No acute osseous abnormalities are seen .
    OUTPUT:
    
Limited portable exam without definite acute cardiopulmonary process . Consider PA and lateral when patient is amenable .