Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is within normal limits . The mediastinal and hilar contours are normal . Prominence of the pulmonary vasculature is present compatible with mild congestion , but there is no evidence of frank pulmonary edema . The lungs ___ volumes which also exaggerate pulmonary markings , but there is no consolidation . There is no pleural effusion or pneumothorax . The spine demonstrates mild - to - moderate degenerative changes along its course in the form of anterior flowing osteophytes .
    OUTPUT:
    
Low lung volumes with possible mild pulmonary vascular congestion .