title: Chronic progressive spastic weakness of the legs.
mesh_terms: D002908:Chronic Disease; D005260:Female; D006801:Humans; D007866:Leg / Q000294:innervation*; D008875:Middle Aged; D009128:Muscle Spasticity; D009455:Neurofibroma / Q000150:complications*; D010243:Paralysis / Q000209:etiology*; D013117:Spinal Cord Compression / Q000150:complications*; D013120:Spinal Cord Neoplasms / Q000150:complications*