Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . The heart is normal in size and cardiomediastinal contour is stable . The lungs are symmetrically expanded and clear without focal areas of consolidation . Blunting of the right posterior costophrnic sulcus . There is no pneumothorax . Previously noted right IJ central venous catheter is no longer visualized . AC joint degenerative changes noted .
    OUTPUT:
    
1 . No evidence of pneumonia . 2 . Blunting of the right posterior costophrenic sulcus may be a tiny right pleural effusion .