Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate low lung volumes resulting in bronchovascular crowding and prominence of the cardiomediastinal silhouette . However , even given low lung volumes , the heart size appears to be mildly increased . There is bibasilar atelectasis , without a focal consolidation . Emphysematous changes are noted bilaterally . There is no edema , pleural effusion , or pneumothorax . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
1 . Low lung volumes with bibasilar atelectasis , without focal consolidation to suggest pneumonia . 2 . Mild cardiomegaly .