Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . Right Port - A - Cath ends in the proximal right atrium , unchanged . There is a new small right pleural effusion . Mild pulmonary vascular congestion is likely present . A new patchy opacity in the right lower lung may represent pneumonia or atelectasis . No pneumothorax . No left pleural effusion . Heart size is grossly stable . CBD stent is visualized . Surgical anchors are demonstrated overlying the right humeral head . The right humeral head remains medially subluxed .
    OUTPUT:
    
New mild pulmonary vascular congestion and small right pleural effusion . New patchy opacity in the right lower lung may represent pneumonia or atelectasis .