Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate low lung volumes , which accentuate bronchovascular markings . Linear bibasilar opacities most likely represent atelectasis . No pleural effusion , focal consolidation or pneumothorax is seen . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal . There is no pulmonary edema . Biapical pleural thickening is stable . Multiple surgical clips project over mid abdomen .
    OUTPUT:
    
Low lung volumes . Linear bibasilar opacities , most consistent with atelectasis .