Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The opacification at the left lung base is improved . There remains mild bibasilar opacities , likely due to atelectasis . There is no pulmonary edema , or large pleural effusion . Mild cardiomegaly is stable . Right midclavicular deformity is again noted . There has been interval removal of transesophageal tube and placement of G - tube . Left PICC terminates at mid SVC . Thoracic Spinal fusion hardware is noted in unchanged position .
    OUTPUT:
    
Mild left lung base opacification is improved . No pulmonary edema .