Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube is in satisfactory position 5 .4 cm from the carina . An enteric tube courses below the diaphragm with the tip out of field of view . A Swan - Ganz catheter is present , and since the prior exam , the tip is now pointing left toward , likely into the left main pulmonary artery . The opacities in the right upper lobe , and to a less extent , in the left upper lobe are more discrete appearing , suggesting the presence of pneumonia . There is still mild edema . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
1 . The opacities in the upper lobes appear more discrete suggesting the presence of pneumonia . 2 . The Swan - Ganz catheter tip is now pointing leftward , likely in the proximal left main pulmonary artery .