Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is accentuated as result of low lung volumes appearing borderline enlarged . The mediastinal and hilar contours are grossly unremarkable . Crowding of bronchovascular structures is present with possible mild pulmonary vascular congestion , but no overt pulmonary edema . Streaky opacities in the lung bases likely reflect areas of atelectasis . No pleural effusion , focal consolidation or pneumothorax is identified . No acute osseous abnormalities detected .
    OUTPUT:
    
Low lung volumes with possible mild pulmonary vascular congestion and bibasilar atelectasis .