Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Increased opacity in the right lower lobe compared to the left . No pleural effusion . No pulmonary edema . Stable cardiomegaly . Stable mediastinal contours . Hila and pleura are unremarkable . Sternotomy wires and cardiac valve devices are intact and unchanged . Left PICC line terminates in the right atrium , approximately 2 cm distal to the cavoatrial junction . No pneumothorax .
    OUTPUT:
    
1 . Right lower lung pneumonia . 2 . Left PICC line terminates in the right atrium . Recommend pulling back 2 cm to position it at the cavoatrial junction .