Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously noted right basilar opacity has improved . Streaky bibasilar opacities likely represent atelectasis . Otherwise no consolidation , sizeable effusion or pneumothorax . Heart appears mildly enlarged , although this may be due to portable technique . There are healed right - sided rib fractures .
    OUTPUT:
    
Probable bibasilar atelectasis . No acute cardiopulmonary process identified .