What is another word for stiff-person syndrome?
Pronunciation: [stˈɪfpˈɜːsən sˈɪndɹə͡ʊm] (IPA) 
Stiff-person syndrome (SPS) is a rare and progressive neurological disorder characterized by stiffness and spasms in the muscles. There are several synonyms used to describe this condition, such as stiff-man syndrome, focal spasticity with rigidity, and Isaacs' syndrome. Stiff-man syndrome is the older term used for SPS, and it refers to the typical muscle stiffness seen in the condition. On the other hand, focal spasticity with rigidity is used to describe a more localized form of muscle stiffness. Isaacs' syndrome is another alternative name for SPS that refers specifically to the muscle twitching and cramping experienced by patients with the disorder. Regardless of the name, it is important for those with SPS to receive proper diagnosis, treatment, and support.
