Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right internal jugular central venous catheter tip terminates in the mid SVC , similar from prior . Lung volumes remain low . Heart size is borderline enlarged . Mediastinal and hilar contours are unchanged . Crowding of the bronchovascular structures is re- demonstrated , and mild pulmonary vascular congestion may be present . Patchy opacities in the lung bases are compatible with areas of atelectasis . No large pleural effusion or pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes with possible mild pulmonary vascular congestion and bibasilar atelectasis .