Abstract
We present the case of an 81-year-old female with severe rigidity, stiffness and superimposed muscle spasms that represents the oldest reported patient with progressive encephalomyelitis with rigidity and myoclonus. Two associated autoimmune disorders (diabetes mellitus and Hashimoto's thyoiditis) were recently diagnosed. A paraneoplastic origin was excluded. The spectrum of differential diagnoses including classic Stiff-Person syndrome and paraneoplastic Stiff-Person syndrome is discussed.
MeSH terms
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Aged, 80 and over
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Anti-Inflammatory Agents / therapeutic use
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Baclofen / therapeutic use
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Electromyography
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Encephalomyelitis / complications
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Encephalomyelitis / pathology*
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Female
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Gait Disorders, Neurologic / etiology
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Humans
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Immunoglobulins / therapeutic use
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Magnetic Resonance Imaging
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Muscle Relaxants, Central / therapeutic use
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Muscle Rigidity / etiology
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Muscle Rigidity / pathology*
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Myoclonus / etiology
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Myoclonus / pathology*
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Neurologic Examination
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Prednisone / therapeutic use
Substances
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Anti-Inflammatory Agents
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Immunoglobulins
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Muscle Relaxants, Central
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Baclofen
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Prednisone