Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The mediastinal and hilar contours are unremarkable . The pulmonary vasculature is not engorged . At least 2 nodular opacities are seen within the right upper lobe , the largest measuring up to 12 mm , and an additional nodular opacity is seen projecting over the left mid lung laterally measuring up to 10 mm . Linear opacities in the lung bases likely reflect areas of atelectasis . No pleural effusion , focal consolidation or pneumothorax is seen . Marked gaseous distension of colonic loops of bowel in the upper abdomen are noted . No acute osseous abnormality is detected .
    OUTPUT:
    
1 . Several nodular opacities within both lungs measuring up to 12 mm which require further assessment with CT of the chest if no previous imaging studies are available for comparison . Bibasilar atelectasis . 2 . Marked gaseous distention of colonic loops of bowel in the upper abdomen . Clinical correlation is recommended and consider dedicated imaging of the abdomen for further assessment if needed .