Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A dual - lumen tunneled dialysis catheter terminates in the right atrium . As compared to prior chest radiograph , there is increased pulmonary markings , which could reflect mild pulmonary vascular congestion . The cardiomediastinal and hilar contours are within normal limits . Lungs are well expanded and clear . There is no focal consolidation , pleural effusion or pneumothorax .
    OUTPUT:
    
Mild pulmonary vascular congestion without edema . No focal consolidation .