Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest is compared to previous exam from ___ . Tracheostomy tube and postoperative changes of left upper lobectomy are again seen . Right basilar opacity silhouettes the right hemidiaphragm . Superiorly , the right lung is clear and appearance of the left lung is stable . Cardiomediastinal silhouette remains stable as do the osseous and soft tissue structures .
    OUTPUT:
    
Right basilar opacity silhouetting the hemidiaphragm , possibly due to any combination of effusion , atelectasis or consolidation . Clinical correlation recommended . Two - view chest x-ray may also offer additional detail .