Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left PICC tip terminates in the mid SVC . An electronic device is seen projecting over the cardiac silhouette . Lung volumes are somewhat low . Mediastinal and hilar contours are unchanged with calcification of aortic knob noted . Heart size is normal . There is no focal consolidation , pleural effusion or pneumothorax . Mild retrocardiac atelectasis is again seen . Clips are noted in the region of the gastroesophageal junction . Marked degenerative changes are noted in both glenohumeral joints . No acute osseous abnormalities detected .
    OUTPUT:
    
No significant interval change from prior . Mild retrocardiac atelectasis .