It was reported that the patient experienced pain and underwent surgery.The target lesion was located in a vessel in the right lower extremity.A 3mm x 40mm x 145cm coyote es balloon catheter was advanced for dilatation and the procedure was completed.After 1.5 months, the patient returned experiencing pain behind the knee.Ultrasound revealed that a foreign material was causing the pain.It was determined that during preparation of the initial procedure, the balloon protective covering was accidentally left on the balloon.Upon balloon inflation, the plastic protective covering was left inside of the patient and the balloon itself was removed.The patient underwent an endarterectomy to remove the balloon protective sleeve.No other patient complications were reported.
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