Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , accounting for some bronchovascular crowding . Linear opacities across the right upper lung and the left mid lung represent subsegmental atelectasis versus scarring and are unchanged from since at least ___ . Of note , in the lateral view there is a suggestion of opacity which obscures the left costophrenic angle and was not present in prior radiographs . This opacity can not be properly assessed in the frontal view due to low lung volumes . No other focal opacities are identified . Cardiomediastinal and hilar contours are grossly unremarkable although assessment is limited due to low lung volumes . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Suggestion of opacity in the lateral view obscuring the left costophrenic angle . Left lower lobe pneumonia can not be excldued with this appearance . Communicated to Dr ___ on ___ at 7 : 50 am via phone by Dr ___ ___ after discussion with the Radiology attending ( Dr ___ ) .