It was reported that during endobronchial ultrasound (ebus), bronchoscopy procedure, a balloon was positioned on the end of the scope.At the end of the procedure, the balloon was not on scope, so the patient was extubated.Patient re-sedated and laryngeal mask airway (lma) was used, and entire lung field was re-examined.No balloon was able to be retrieved.Follow-up has been conducted and pending additional information.