ulcer

lesion on the surface of the skin or a mucous surface, produced by the sloughing of inflammatory necrotic tissue
Thing symptom_or_sign Q6452285
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ulcer

Summary

ulcer is a symptom or sign[1]. ulcer has Wikipedia articles in 25 language editions, a strong signal of global cultural recognition.[2]

Key Facts

  • ulcer's instance of is recorded as symptom or sign[3].
  • ulcer is a type of skin disease[4].
  • ulcer is a type of clinical sign[5].
  • ulcer is a type of ulcer[6].
  • ulcer is a type of skin lesion[7].
  • ulcer is a type of pathologic processes[8].
  • ulcer's Commons category is recorded as Ulcers[9].
  • ulcer's described by source is recorded as Armenian Soviet Encyclopedia[10].
  • ulcer's described by source is recorded as Brockhaus and Efron Encyclopedic Dictionary[11].
  • ulcer's described by source is recorded as Desktop Encyclopedic Dictionary[12].
  • ulcer's described by source is recorded as Small Brockhaus and Efron Encyclopedic Dictionary[13].
  • ulcer's described by source is recorded as Small Soviet Encyclopedia[14].
  • ulcer's described by source is recorded as Explanatory Dictionary of the Living Great Russian Language[15].
  • ulcer's NCI Thesaurus ID is recorded as C54247[16].
  • ulcer's name in kana is recorded as ひふかいよう[17].
  • ulcer's health specialty is recorded as dermatology[18].
  • ulcer's health specialty is recorded as surgery[19].
  • ulcer's exact match is recorded as http://purl.obolibrary.org/obo/HP_0200042[20].
  • ulcer's exact match is recorded as http://purl.obolibrary.org/obo/SYMP_0000136[21].

Body

Definition and Type

ulcer's instance of is recorded as symptom or sign[3]. Recorded subclass of include skin disease[4], clinical sign[5], ulcer[6], skin lesion[7], and pathologic processes[8].

Why It Matters

ulcer has Wikipedia articles in 25 language editions, a strong signal of global cultural recognition.[2] ulcer is known by 22 alternative names across languages and contexts.[22]

References

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

Direct Wikidata claims

  1. [3] ↑ . Q87326123. wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . Symptom Ontology. Retrieved . 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.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . Human Phenotype Ontology release 2018-03-08. Retrieved . wikidata.org.
  19. [21] ↑ . Symptom Ontology. Retrieved . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikidata sitelinks. wikidata.org.
  2. [22] ↑ . 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). ulcer. Retrieved October 2, 2026, from https://4ort.xyz/entity/ulcer
MLA “ulcer.” 4ort.xyz Knowledge Graph, 4ort.xyz, 2 Oct. 2026, https://4ort.xyz/entity/ulcer.
BibTeX @misc{4ortxyz_ulcer_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{ulcer}}, year = {2026}, url = {https://4ort.xyz/entity/ulcer}, note = {Accessed: 2026-10-02}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): ulcer — https://4ort.xyz/entity/ulcer (retrieved 2026-10-02)

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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 · SLuecke · 2026-08-17 view diff on Wikidata ↗
    Harper's tag → ulcers
    Verbaalpina id → C8690
    "/* wbcreateclaim-create:1| */ [[Property:P10381]]: C8690, #quickstatements; #temporary_batch_1786955435161"
  2. 10w ago · Pierrotrgr · 2026-07-24 view diff on Wikidata ↗
    Biblissima authority id → Q296777
    "/* wbsetclaim-create:2||1 */ [[Property:P11493]]: Q296777, Import ID Biblissima V3 ([[:toollabs:editgroups/b/OR/a6710164cdc|details]])"
  3. 18w ago · Twofivesixbot bot · 2026-05-30 view diff on Wikidata ↗
    Instance of → symptom or sign
    Aliases → —
    Health specialty → dermatology, surgery
    Described by source → Armenian Soviet Encyclopedia, Brockhaus and Efron Encyclopedic Dictionary, Desktop Encyclopedic Dictionary +3
    + 3 other properties edited (see Wikidata diff for full list)
    "/* wbsetclaim-update-qualifiers:1||1|2 */ [[Property:P8189]]: 987007560833805171, mv to monolingual text names on J9U statements"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.