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Landau–Kleffner syndrome

a rare childhood neurological syndrome characterized by seizures and progressive loss of speech typically in a child with previous age-appropriate development
MedicalCondition designated_intractable_rare_disease Q1636310
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Landau–Kleffner syndrome

Summary

Landau–Kleffner syndrome is a designated intractable/rare disease[1]. It draws 50 Wikipedia views per month (designated_intractable_rare_disease category, ranking #141 of 201).[2]

Key Facts

  • Landau–Kleffner syndrome's instance of is recorded as designated intractable/rare disease[3].
  • Landau–Kleffner syndrome's instance of is recorded as rare disease[4].
  • Landau–Kleffner syndrome's instance of is recorded as class of disease[5].
  • William Landau is named after Landau–Kleffner syndrome[6].
  • Frank Kleffner is named after Landau–Kleffner syndrome[7].
  • Landau–Kleffner syndrome's subclass of is recorded as childhood electroclinical syndrome[8].
  • Landau–Kleffner syndrome's subclass of is recorded as disease[9].
  • Landau–Kleffner syndrome's MeSH descriptor ID is recorded as D018887[10].
  • Landau–Kleffner syndrome's OMIM ID is recorded as 245570[11].
  • Landau–Kleffner syndrome's ICD-9 ID is recorded as 345.8[12].
  • Landau–Kleffner syndrome's ICD-10 ID is recorded as F80.3[13].
  • Landau–Kleffner syndrome's DiseasesDB is recorded as 31407[14].
  • Landau–Kleffner syndrome's Freebase ID is recorded as /m/06vfh5[15].
  • Landau–Kleffner syndrome's KEGG ID is recorded as H01514[16].
  • Landau–Kleffner syndrome's MeSH tree code is recorded as C10.228.140.490.535[17].
  • Landau–Kleffner syndrome's eMedicine ID is recorded as 1176568[18].
  • Landau–Kleffner syndrome's Disease Ontology ID is recorded as DOID:2538[19].
  • Landau–Kleffner syndrome's external data available at URL is recorded as http://www.nanbyou.or.jp/entry/4411[20].
  • Landau–Kleffner syndrome's Encyclopædia Britannica Online ID is recorded as topic/Landau-Kleffner-syndrome[21].
  • Landau–Kleffner syndrome's Patientplus ID is recorded as Landau-Kleffner-Syndrome[22].
  • Landau–Kleffner syndrome's Orphanet ID is recorded as 98818[23].
  • Landau–Kleffner syndrome's NCI Thesaurus ID is recorded as C84806[24].
  • Landau–Kleffner syndrome's health specialty is recorded as neurology[25].
  • Landau–Kleffner syndrome's health specialty is recorded as psychiatry[26].
  • Landau–Kleffner syndrome's genetic association is recorded as GRIN2A[27].

Why It Matters

Landau–Kleffner syndrome draws 50 Wikipedia views per month (designated_intractable_rare_disease category, ranking #141 of 201).[2] It has Wikipedia articles in 15 language editions, a strong signal of global cultural recognition.[28] It is known by 15 alternative names across languages and contexts.[29]

Related Entities

disease neurology psychiatry

References

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

Direct Wikidata claims

  1. [3] ↑ . ddrare.nibiohn.go.jp. Retrieved . ddrare.nibiohn.go.jp. Provenance: wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . Disease Ontology. Retrieved . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . Disease Ontology. Retrieved . wikidata.org.
  9. [11] ↑ . Disease Ontology. Retrieved . wikidata.org.
  10. [12] ↑ . wikidata.org.
  11. [13] ↑ . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . Freebase Data Dumps. wikidata.org.
  14. [16] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . Disease Ontology. Retrieved . wikidata.org.
  18. [20] ↑ . ddrare.nibiohn.go.jp. Retrieved . ddrare.nibiohn.go.jp. Provenance: wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . patient.co.uk. patient.co.uk. Provenance: wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . Disease Ontology. Retrieved . wikidata.org.
  23. [25] ↑ . wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . Mutations in GRIN2A and GRIN2B encoding regulatory subunits of NMDA receptors cause variable neurodevelopmental phenotypes. Retrieved . platform.opentargets.org. Provenance: wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [28] ↑ . Wikidata sitelinks. wikidata.org.
  3. [29] ↑ . 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). Landau–Kleffner syndrome. Retrieved May 3, 2026, from https://4ort.xyz/entity/landau-kleffner-syndrome
MLA “Landau–Kleffner syndrome.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/landau-kleffner-syndrome.
BibTeX @misc{4ortxyz_landau-kleffner-syndrome_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Landau–Kleffner syndrome}}, year = {2026}, url = {https://4ort.xyz/entity/landau-kleffner-syndrome}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Landau–Kleffner syndrome — https://4ort.xyz/entity/landau-kleffner-syndrome (retrieved 2026-05-03)

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