Delayed Cutaneous Fluid Leak After Removal of an Epidural Catheter

You are called after hours to evaluate clear liquid leaking from an “epidural catheter puncture hole.” The patient is a 50-yr-old Asian male (American Society of Anesthesiologists physical status 2) who had an exploratory laparotomy with gastrostomy for gastric cancer 5d before. He had an epidural catheter, through which epidural hydromorphone had been used until the 2nd postoperative day, when it was removed intact. The patient is sitting up in bed and not complaining of anything, not even a headache. His past history and examination are noncontributory