Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There is subtle opacity at the left lung base laterally which partially obscures the left heart border with focal opacity confirmed on the lateral view . Blunting of the posterior costophrenic angles may be due to small effusions . Elsewhere , the lungs are clear . The cardiac silhouette is moderately enlarged . There is a 4 mm rounded density projecting over the left lung laterally which is likely calcified given density and could represent a calcified granuloma . No acute osseous abnormalities .
    OUTPUT:
    
Focal opacity within the lingula which certainly could be infection in the proper clinical setting . Probable small bilateral effusions . Patient was discharged from ED with diagnosis of pneumonia .