Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left Port - A - Cath ends in the mid SVC . Linear opacities in the right lung base represent atelectasis . There are also bulla consistent with patient 's known emphysema . There is no pulmonary edema , pleural effusion or pneumothorax . The heart size is normal and the calcified tortuous aortic contour is unchanged . Again seen is expansion and sclerosis of a few right lower ribs consistent with patient 's diagnosis of myeloma .
    OUTPUT:
    
No acute abnormality identified to explain patient 's upper respiratory symptoms .