Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates approximately 4 .7 cm from the carina . An orogastric tube tip and side - port are within the stomach . Heart size is top normal . Mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Patchy opacity in the left lung base may reflect atelectasis though infection is not excluded . Right lung is clear . No pleural effusion or pneumothorax is identified . No displaced fractures are visualized .
    OUTPUT:
    
1 . Standard positioning of endotracheal and orogastric tubes . 2 . Streaky opacity in the left lung base , possibly atelectasis though infection is not excluded .