ABSTRACT
A 23-year-old man, who is an accountant, has presented complaining of numbness and weakness in his legs. He first noticed the symptoms two days ago, with tingling in his feet and weakness in the ankle joints. He now thinks that his legs are weak up to the thighs and has fallen over several times. He describes his legs as heavy and numb to touch. He denies any shortness of breath and feels otherwise well, although he has recently recovered from a bout of food poisoning (there are no problems with his bowels or micturition now). He has no medical history.
