Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate low lung volumes which results in bronchovascular crowding . Bibasilar atelectasis is present . The hila are somewhat indistinct bilaterally , consistent with mild pulmonary edema . The cardiomediastinal and hilar contours are unchanged . There is no pneumothorax , pleural effusion , or consolidation .
    OUTPUT:
    
Mild pulmonary edema and bibasilar atelectasis . No pleural effusion .