Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube ends in the mid thoracic trachea . Heart size is within normal limits . An enteric tube courses below the level of the diaphragm . There is no evidence of pneumothorax . A new opacity at the left lung base could represent atelectasis or aspiration . There is a fracture of the right humeral through the greater tubercle . A deformity of the left clavicle is unchanged .
    OUTPUT:
    
1 . No evidence of pneumothorax . An endotracheal tube ends in the mid thoracic trachea . 2 . A right humerus fracture is better characterized on dedicated radiographs . 3 . A new opacity at the left lung base could represent atelectasis or aspiration .