Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased left lower lobe and retrocardiac heterogeneous opacity with partial obscuration of the left hemidiaphragm . Hyperinflated lungs without pneumothorax , pleural effusion , or pulmonary edema . Heart size , mediastinal contour , and hila are otherwise normal . Mild kyphosis without additional bony abnormality .
    OUTPUT:
    
Early / focal left lower lobe pneumonia . Results were conveyed via telephone to Dr . ___ by Dr .___ on ___ at 4 :20 PM within 10 minutes of observation of findings .