Stiff person Syndrome is a rare disease of severe progressive muscle stiffness of the spine and lower extremities with superimposed muscle spasms triggered by external stimuli or emotional stress.
Stiff person Syndrome is a rare disease of severe progressive muscle stiffness of the spine and lower extremities with superimposed muscle spasms triggered by external stimuli or emotional stress.
Typically symptoms begin between the age of 30 and 50 and respond to benzodiazepines. EMG shows a characteristic abnormality and anti-GAD (glutamic acid decarboxylase) antibodies, which are very specific, are present in 60% of people with the disease.