Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A tracheostomy tube is present . A left subclavian central line terminates in the mid SVC . A feeding tube is noted with its distal tip in the first portion of the duodenum . There is no pleural effusion or pneumothorax . There is no focal airspace consolidation . Atelectasis is noted at the left lung base . The heart size is normal . A small amount of calcification is seen within the aortic arch . The mediastinal contour and pleural structures are unremarkable .
    OUTPUT:
    
Satisfactory position of a left subclavian line without complications .