Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal radiograph shows a PICC in stable position within the lower SVC . Since the prior radiograph on ___ , there has been mild increase in the vascular congestion . There is a small hazy opacity at the left base which may represent a developing pneumonia . There are two new wires overlying the heart and mediastinum . The patient is status post sternoclavicular resection on the left .
    OUTPUT:
    
1 . Mild increase in vascular congestion since prior radiograph . 2 . Mild hazy opacity at the left base may represent developing pneumonia .