Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Vascular crowding due to low lung volumes is responsible for increased opacity of the lower lungs . No focal consolidation concerning for pneumonia , pleural effusion , or pneumothorax is detected . The pulmonary vasculature is not engorged and there is no pulmonary edema . The cardiac silhouette is normal size allowing for decreased lung volumes . The mediastinal and hilar contours are likewise within normal limits . The trachea is midline . An irregular rope - like density projecting over the right neck likely represents hair artifact or material external to the patient . The visualized upper abdomen shows tubing related to a lap band , similar in appearance to the prior ___ study .
    OUTPUT:
    
No focal consolidation concerning for pneumonia . Low lung volumes .