Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Subtle increased opacity of the lower lung on lateral view likely is on the left . No pleural effusion , pneumothorax , or pulmonary edema is seen . Heart and mediastinal contours are within normal limits .
    OUTPUT:
    
Subtle lower lobe opacity , likely on the left , concerning for pneumonia . This finding was reported to Dr . ___ by ___ in person at 8 : 40 a .m . on ___ after attending radiologist review .