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stiff-person syndrome

rare neurologic disorder characterized by progressive rigidity and stiffness in truncal muscles, spasms, postural deformities, chronic pain, impaired mobility, and lumbar hyperlordosis
MedicalCondition class_of_disease Q1235785
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Summary

stiff-person syndrome is a class of disease[1]. It draws 15,173 Wikipedia views per month (class of disease category, ranking #205 of 1,968).[2]

Key Facts

  • Instance of: rare disease[3]
  • Subclass of: movement disorders[4]
  • Commons category: Stiff person syndrome[5]
  • Symptoms and signs: muscle rigidity[6], myoclonus[7]
  • Described at URL: https://www.washingtonpost.com/lifestyle/2022/12/08/celine-dion-stiff-person-syndrome/?utm_source=pocket-newtab-global-en-GB[8]
  • Prevalence: 0.0000008[9]
  • ICD-9-CM: 333.91[10]
  • NCI Thesaurus ID: C85170[11]
  • Short name: SPS[12], SPR[13]
  • Health specialty: neurology[14]
  • Exact match: http://purl.obolibrary.org/obo/DOID_13366[15], http://identifiers.org/doid/DOID:13366[16]
  • On focus list of Wikimedia project: WikiProject Medicine[17]
  • Has phenotype: muscle rigidity[18]

Why It Matters

stiff-person syndrome has Wikipedia articles in 20 language editions, a strong signal of global cultural recognition.[19] It is known by 46 alternative names across languages and contexts.[20]

Related Entities

Céline Dion neurology

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [19] ↑ . Wikidata sitelinks. wikidata.org.
  3. [20] ↑ . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). stiff-person syndrome. Retrieved October 17, 2026, from https://4ort.xyz/entity/stiff-person-syndrome
MLA “stiff-person syndrome.” 4ort.xyz Knowledge Graph, 4ort.xyz, 17 Oct. 2026, https://4ort.xyz/entity/stiff-person-syndrome.
BibTeX @misc{4ortxyz_stiff-person-syndrome_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{stiff-person syndrome}}, year = {2026}, url = {https://4ort.xyz/entity/stiff-person-syndrome}, note = {Accessed: 2026-10-17}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): stiff-person syndrome — https://4ort.xyz/entity/stiff-person-syndrome (retrieved 2026-10-17)

Canonical URL: https://4ort.xyz/entity/stiff-person-syndrome · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 6w ago · Alb1275 · 2026-09-04 view diff on Wikidata ↗
    Has phenotype → muscle rigidity
    On focus list of wikimedia project → WikiProject Medicine
    Instance of → class of disease, rare disease
    Health specialty → neurology
    + 7 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-create:2||1 */ Uk parliament thesaurus id: 586061"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.