Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal radiographs of the chest demonstrate normal heart size . The left hemidiaphragm remains elevated with however the contour is obsured which could reflect left lower lobe collapse . Chronic atelectasis with more prominent atelectasis in the left mid and lower lung .
    OUTPUT:
    
Chronic atelectasis with more pronounced left lower lobe volume loss likely reflecting collapse . This could be further evaluated with chest CT . Telephone notification to Dr ___ by Dr ___ at 9 : 15 on ___ .