Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Of AP and lateral views of the chest provided . Kyphotic positioning limits evaluation to the lung apices and lower lungs . Patient is known to have a large hiatal hernia which is evidenced by a retrocardiac opacity with gas contained within . There is associated lower lobe atelectasis as well as probable complete collapse of the right middle lobe . A small left pleural effusion is also noted . Heart size can not be assessed . Vertebroplasty changes are noted in a lower thoracic vertebral body , unchanged . Chronic left shoulder dislocation again noted .
    OUTPUT:
    
Large hiatal hernia with atelectasis in the lower lungs as stated , small left effusion . Chronic left glenohumeral dislocation .