Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild elevation of the left hemidiaphragm with volume loss . The cardiac , mediastinal and hilar contours appear stable . The right lung is clear . There are a few very small unchanged nodules projecting over the left upper lung , none over 5 mm in diameter , probably calcified granulomas . Vague opacity in the lingula appears new and there is minimal posterior basilar opacity which could be seen with minor volume loss . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Patchy lingular and left lower lobe opacities , more likely due to atelectasis than pneumonia ; not a definite source for fever although very early development of pneumonia is not excluded .