Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperexpanded with flattening of the hemidiaphragms , suggesting emphysema , similar to the prior exam . A sub - cm , round opacity over the left anterior third rib is overall similar and appears to have a correlate on the lateral view . This could represent a pulmonary nodule or rib lesion . Calcified granulomas in the right upper lobe are unchanged . Streaky linear opacities in the right middle lobe are new from the prior exam , best appreciated on the lateral view , likely atelectasis . No pleural effusion or pneumothorax . Heart size and extensive aortic knob calcifications are unchanged . Nonspecific gaseous distension of partially visualized loops of bowel are similar to the prior exam .
    OUTPUT:
    
1 . New right middle lobe streaky opacity is probably atelectasis . 2 . Hyperexpanded lungs suggestive of emphysema . 3 . Sub - centimeter nodule is unchanged and may be in the bones or lungs . This could be further evaluated with a non-emergent chest radiograph with shallow oblique views , or if still unrevealing , a Chest CT .