Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low and projection is AP , causing bronchovascular crowding and accentuation of heart size . Lungs are grossly clear without focal consolidation , effusion , or pneumothorax . Overall , similar radiographic appearance compared with the prior 2 radiographs .
    OUTPUT:
    
No acute cardiopulmonary process , allowing for limitations of an AP portable view .