Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . There is extensive subcutaneous emphysema within the left chest wall extending into the neck . Streaky gas lucency projecting over the mediastinum is compatible with known pneumomediastinum , seen on CT of the cervical spine . There is left basal airspace consolidation with possible small pleural effusion or hemothorax . A small left pneumothorax is present without definite signs of tension . The right lung appears grossly clear though likely with mild basal atelectasis . The heart size appears grossly within normal limits . Acute fractures of the left ribs 5 , 6 , 7 and 8 which appear displaced .
    OUTPUT:
    
1 . Acute displaced left rib fractures 5 through 8 with small left pneumothorax , left basal consolidation and probable small left effusion . 2 . Pneumomediastinum , left chest wall subcutaneous emphysema extending to the neck .