Lumbar stenosis complicating retained epidural catheter tip.
D000767:Anesthesia, Epidural / Q000295:instrumentation*; D002404:Catheterization; D004824:Epidural Space; D004868:Equipment Failure; D005547:Foreign Bodies / Q000150:complications*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis / Q000209:etiology*; D012086:Reoperation; D013130:Spinal Stenosis / Q000175:diagnosis / Q000209:etiology*