Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . No prior . Low lung volumes are identified . Left basilar linear opacities , most suggestive of atelectasis . Elsewhere , lungs are clear . There is no effusion . Cardiomediastinal silhouette is within normal limits . Degenerative changes noted at the acromioclavicular joints bilaterally . Soft tissues and osseous structures are otherwise grossly unremarkable , noting mid thoracic dextroscoliosis .
    OUTPUT:
    
No definite acute cardiopulmonary process .