Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip terminates approximately 5 .6 cm from the carina . Heart size is normal . Mediastinal and hilar contours are unremarkable . There is no pulmonary edema . Streaky and linear opacities in the lung bases are compatible with areas of atelectasis . No large pleural effusion or pneumothorax is seen . A 6 mm nodular opacity projecting over the left mid lung field may reflect a calcified granuloma . There is no focal consolidation . There is gaseous distention of the stomach . Widening of the right acromioclavicular joint suggests prior type II AC joint separation .
    OUTPUT:
    
1 . Standard positioning of the endotracheal tube . 2 . Bibasilar atelectasis . 3 . Gaseous distension of the stomach . 4 . Evidence of right acromioclavicular joint separation , type II , likely chronic .