Stiff person spectrum disorder
What is Stiff person spectrum disorder?
A rare neurological disorder comprising fluctuating trunk and limb stiffness, painful muscle spasms, task-specific phobia, an exaggerated startle response, and ankylosing deformities such as fixed lumbar hyperlordosis.
Other condition names
- Moersch-Woltman syndrome
- SMS
- SPS
- Stiff man syndrome
Inheritance type
Not applicable
Prevalence
- Europe: 1-9 in 1,000 000
Age of Onset
- Adult
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