Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Hilar contours are stable and there may be mild central pulmonary vascular engorgement without overt pulmonary edema . No focal consolidation is seen . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
Possible mild central pulmonary vascular engorgement without overt pulmonary edema . No evidence of pneumothorax .