Diseases

Crohn Disease

A chronic transmural inflammation that may involve any part of the DIGESTIVE TRACT from MOUTH to ANUS, mostly found in the ILEUM, the CECUM, and the COLON. In Crohn disease, the inflammation, extending through the intestinal wall from the MUCOSA to the serosa, is characteristically asymmetric and segmental. Epithelioid GRANULOMAS may be seen in some patients.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A chronic transmural inflammation that may involve any part of the DIGESTIVE TRACT from MOUTH to ANUS, mostly found in the ILEUM, the CECUM, and the COLON. In Crohn disease, the inflammation, extending through the intestinal wall from the MUCOSA to the serosa, is characteristically asymmetric and segmental. Epithelioid GRANULOMAS may be seen in some patients.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

16 entry terms
  • Crohn's Disease
  • Crohn's Enteritis
  • Inflammatory Bowel Disease 1
  • Regional Enteritis
  • Crohns Disease
  • Colitis, Granulomatous
  • Enteritis, Granulomatous
  • Enteritis, Regional
  • Ileitis, Regional
  • Ileitis, Terminal
  • Ileocolitis
  • Granulomatous Colitis
  • Granulomatous Enteritis
  • Regional Ileitides
  • Regional Ileitis
  • Terminal Ileitis

MeSH Record

Aspects Covered

35 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Record

Indexing Annotation

coord IM with ILEITIS (IM) or COLITIS (IM) only if site is particularly discussed; usually chronic so do not coord with CHRONIC DISEASE

MeSH Record

History Note

80; was ENTERITIS, REGIONAL 1965-79, was ILEITIS, REGIONAL 1963-64

MeSH Hierarchy

Tree Numbers

  1. C06w.405w.205w.731w.500w
  2. C06w.405w.469w.432w.500w

MeSH Record

NLM Classification

WI 422

AMA Style

References

  1. National Library of Medicine. Crohn Disease. Medical Subject Headings (MeSH). 2026. Unique ID D003424. http://id.nlm.nih.gov/mesh/2026/D003424
  2. Crohn Disease. In: Wikipedia. https://en.wikipedia.org/wiki/Crohn%27s_disease
  3. Crohn Disease. In: Wikidata. https://www.wikidata.org/wiki/Q1472