Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright view of the chest provided . Tracheostomy tube is seen as well as a Port - A - Cath overlying the right chest wall with catheter tip in the region of the low SVC . Also noted is a left IJ dialysis catheter with its tip extending to the cavoatrial junction . There is chronic elevation of the left hemidiaphragm with lower lobe atelectasis and small left pleural effusion , not significantly changed from prior exam . There may be mild pulmonary edema / fluid overload . Heart size can not be assessed . Mediastinal contour appears stable . Bony structures appear intact .
    OUTPUT:
    
Stable left lower lobe atelectasis and effusion with probable mild fluid overload / congestion .