Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left - sided port terminates in the mid SVC . There appears to be kinking along the mid region of the port . The heart size is normal . The hilar and mediastinal contours are normal . No focal consolidations concerning for pneumonia are identified . There is no pleural effusion or pneumothorax . The visualized osseous structures are grossly unremarkable .
    OUTPUT:
    
Kinking of the mid portion of the port at the level of the left fourth posterior rib . Given the clinical history , this could represent a potential source of malfunction .