Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again noted are multiple left - sided rib fractures . There is no evidence of a large pneumothorax but a small persistent left - sided pneumothorax can not be excluded . There is no shift of the midline structures . There are slightly increased opacities in the left lung , likely suggestive of atelectasis . Cardiac silhouette appears prominent . No pleural effusion is identified .
    OUTPUT:
    
1 . Again noted are multiple slightly displaced left lower rib fractures . There is no evidence of a large pneumothorax or shift of the midline structures , but a small persistent pneumothorax can not be excluded . 2 . Increased opacities in the left lung which are likely representative of atelectasis . Continued followup is recommended .