Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate low lung volumes with resultant prominence of the cardiac silhouette and bronchovascular crowding . Linear opacities in the left base are consistent with atelectasis . No focal consolidation , pleural effusion , or pneumothorax is seen . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . Low lung volumes with bronchovascular crowding .