Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate low lung volumes which result in exaggeration of the cardiomediastinal silhouette and bronchovascular crowding . Allowing for this , there is no focal consolidation , pleural effusion , or pneumothorax . The visualized upper abdomen is unremarkable . No nondisplaced rib fracture is identified .
    OUTPUT:
    
Low lung volumes with exaggeration of the cardiac silhouette and bronchovascular crowding . Within these limitations , no acute cardiopulmonary process . The lower lungs are difficult to evaluate given low lung volumes . If there is continued concern , repeat radiographs with good inspiration should be obtained .