Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Supine portable AP view of the chest was provided . The tip of the endotracheal tube resides approximately 4 cm above the carina . The NG tube courses into the left upper abdomen , tip excluded from view . There is consolidation at the left lung base which likely represents a combination of effusion and possibly aspiration / atelectasis . The right lung appears grossly clear . Heart size can not be readily assessed . Mediastinal contour appears normal . A right humeral head replacement is noted . Degenerative changes are severe at the left glenohumeral joint .
    OUTPUT:
    
ET and NG tubes positioned appropriately . Opacity at the left lung base likely reflects atelectasis , aspiration , and effusion .