Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes . Linear opacities at the right lung base likely represent atelectasis . No pleural effusion or pneumothorax . Heart size is top normal . Hilar and mediastinal silhouettes are unremarkable . Pulmonary edema has resolved since ___ .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis . Pulmonary edema seen on ___ exam has resolved .