Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is right lung base opacity with air bronchograms , with corresponding " spine sign " on lateral projection , findings concerning for pneumonia . In comparison to prior study from ___ , there is interval improvement of pulmonary interstitial edema . Small residual left pleural effusion is seen . Moderate - to - severe cardiomegaly is stable . The right - sided subclavian line terminates in the low SVC . Median sternotomy wires are intact .
    OUTPUT:
    
Findings concerning for right lower lobe pneumonia .