Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Aorta is mildly tortuous . Patchy and linear opacities are present in the mid and lower lungs bilaterally . Paucity of vasculature in the upper lobes , right greater than left , appears to correspond emphysema on prior chest CTA of ___ . No pleural effusion or pneumothorax . On the lateral view , focal lucency and discontinuity of the right eleventh posterior rib is present , difficult to assess on the frontal radiograph due to superimposition of structures . This region was not included on the prior chest CTA .
    OUTPUT:
    
1 . Focal discontinuity and lucency of right limit posterior rib , seen only on lateral view and incompletely evaluated radiographically . Although potentially due to a fracture , in the absence of traumatic history , a destructive bone lesion from myeloma or metastatic disease should be considered . 2 . Multifocal atelectasis in the mid and lower lungs .