Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable single frontal chest radiograph was obtained with the patient in upright position . The patient is status post extubation . A right IJ terminates in the right atrium . There is significant left lower lobe volume loss with complete obscuration of the left hemidiaphragm and leftward shift of the mediastinum . A lucency is present over the left mid lung , possibly a luculated pocket of air . There is also a moderate left pleural effusion . There is mild right basilar atelectasis with a small layering pleural effusion . Heart size is difficult to assess given parenchymal abnormalities .
    OUTPUT:
    
1 . Significant left lower lobe volume loss with large area of opacification and layering left pleural effusion . In the appropriate clinical setting , this could be pneumonia . 2 . Focal lucency over left mid lung concerning for loculated air . Recommend repeating chest radiograph for confirmation . Findings were communicated with Dr .___ ___ telephone by Dr .___ at 3 pm on ___ .