Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left subclavian PICC line is present , at fall is a somewhat atypical course but appears to terminate in the upper / mid SVC . No pneumothorax detected . There are low inspiratory volumes . There is upper zone redistribution and mild vascular plethora . There is bibasilar atelectasis . Extreme right costophrenic angle excluded from the film . Allowing for this , no gross effusion . Heart size is at the upper limits of normal or slightly enlarged , appearing stable compared to the recent prior films . The appearance is likely accentuated by low lung volumes . Mediastinal clips noted . Review of OMR indicates a history of sternal debridement in bilateral pectoralis flaps .
    OUTPUT:
    
PICC line tip over proximal / mid SVC . Please see comment above . Probable mild cardiomegaly and mild CHF . Bibasilar atelectasis .