Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left PICC tip terminates in the mid SVC . Lung volumes are low . Cardiac , mediastinal and hilar contours are unremarkable . There is crowding of bronchovascular structures without overt pulmonary edema . Linear atelectasis is noted in the right perihilar region , as well as patchy atelectasis in the lung bases . No pleural effusion , definite focal consolidation or pneumothorax is seen . Patient has undergone prior right shoulder arthroplasty which is incompletely assessed .
    OUTPUT:
    
Left PICC tip in the mid SVC . Low lung volumes with bibasilar atelectasis