Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . No prior . Linear opacities at the lung bases suggestive of atelectasis . Probable left lateral prior rib fractures are identified inferiorly . There is also evidence of biapical scarring . There is no large effusion . Cardiomediastinal silhouette is within normal limits . Several densities seen in the left suprahilar region and projecting over the anterior first left rib . These could be costochondral calcifications ; however , two - view chest x-ray is suggested to further characterize when patient is amenable .
    OUTPUT:
    
No definite acute cardiopulmonary process . Bibasilar atelectasis . Vague opacities projecting over the left upper lung medially , potentially costochondral calcifications ; however , dedicated chest x-ray with two views is suggested when patient is amenable .