Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is elevation of right hemidiaphragm of unclear etiology , new since ___ , but unchanged from PET - CT from ___ . There is no pleural effusion . Bilateral lungs are clear without evidence of pneumonia or pulmonary edema . Cardiac silhouette is normal size . An infusion port is partially visualized in the left upper quadrant of abdomen .
    OUTPUT:
    
There is elevation of right hemidiaphragm of unclear etiology , new since ___ , but unchanged from PET - CT from ___ . There is no pleural effusion or pneumonia .