Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Density is seen projecting over the bilateral upper chest , projecting over the region of the bilateral anterior first ribs , not seen on the prior study . Well these findings may relate to the bilateral anterior first ribs , recommend shallow oblique radiographs or chest CT to exclude underlying pulmonary lesions . There are low lung volumes , which accentuate the bronchovascular markings . Bibasilar atelectasis is seen . Patchy left base retrocardiac opacities most likely relate to atelectasis although consolidation is not excluded in the appropriate clinical setting . No pleural effusion or pneumothorax is seen . Cardiac and mediastinal silhouettes are grossly stable .
    OUTPUT:
    
Densities projecting over the bilateral upper lungs could relate to the bilateral anterior first ribs , new since the prior study from ___ . Recommend shallow oblique radiographs or chest CT to exclude pulmonary lesions . Patchy left base retrocardiac opacity most likely relate to atelectasis although consolidation is not excluded in the appropriate clinical setting .