Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Streaky opacity is identified at the lung bases most likely due to atelectasis . There is no effusion or confluent consolidation . On the lateral view , there is increased opacity projecting over the cardiac silhouette extending superiorly with well - defined anterior margin . This is thought to represent external soft tissues given lack of correlative opacity on the frontal view . On the right , there is suggestion of either diffuse pleural thickening or prominent extrapleural fat . Cardiomediastinal silhouette is within normal limits . No acute osseous abnormality detected .
    OUTPUT:
    
Bibasilar atelectasis without definite acute cardiopulmonary process .