Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs are well expanded . A linear opacity in projecting over the lateral left lung is unchanged , likely platelike atelectasis . A new opacity projecting over the anterior right third rib is new . A small left pleural effusion is unchanged . Severe cardiomegaly is unchanged . Cardiomediastinal hilar silhouettes are unremarkable . Median sternotomy wires are midline and intact .
    OUTPUT:
    
Probable right upper lung pneumonia .