An event which doctors have consensually denied possible because A) they have never seen it, B) they don't know how to make it happen, and C) it does not fit within the narrow guidelines of their practice, which are in place to keep patients where they are.
The patient had been diagnosed with Secondary Progressive Multiple Sclerosis, told that she would never walk again, classed as "non-ambulatory" for insurance purposes, issued a steel leg brace and a motorized scooter. Dutifully, she did not walk, or try to, for two decades. With the help of someone who believed that a miraculous medical reversal was possible, the day came when she walked into her neurologist's office on her own feet, without the scooter, without the leg brace. Her doctor responded with total refusal of acknowledgement. His practice, after all, was described as "maintenance", not cure, and what the hell was this.