Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 1 . Vague left basilar opacity , in the appropriate clinical context , may represent pneumonia . 2 . Increased , bibasilar interstitial markings , of unclear etiology , possibly related to mild edema versus chronic interstitial lung disease . 2 . Widespread , multifocal osteoblastic disease .
    OUTPUT:
    
If tolerable for the patient , PA and lateral views of the chest can be obtained for further evaluation .