Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A balloon is partly visualized along the distal part of an endoscope which enters the stomach . The balloon is primarily in the stomach but partly inflated at the gastroesophageal junction . The patient remains intubated . There is new retrocardiac opacification with air bronchograms , probably atelectasis . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
Balloon inflated largely in the stomach but also partly overlying the expected region of the gastroesophageal junction . New retrocardiac opacity probably atelectasis .