Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes , which accentuate the bronchovascular markings . Given this , no focal consolidation is seen . There is no pleural effusion or pneumothorax . Cardiac silhouette size is top - normal . Mediastinal contours are unremarkable . There may be slight central pulmonary vascular engorgement without pulmonary edema .
    OUTPUT:
    
Possible slight central pulmonary vascular engorgement without pulmonary edema . Relatively low lung volumes without focal consolidation seen .