Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen are patchy opacities in the right mid and lower lung zones . These are stable . The cardiomediastinal silhouette is stable . There is a nodular opacity overlying the left sixth anterior rib as before . A tracheostomy tube is in place .
    OUTPUT:
    
1 . Patchy opacities in the right mid and lower lung zones are unchanged likely reflecting pneumonia . 2 . Nodular opacity in the left lower lung zone which could reflect a nipple shadow or a nodule . Repeat radiograph should be performed with nipple markers .