MeSH Browser

MeSH Heading: CA-19-9 Antigen
Tree Number(s): D23.050.285.050.119; D23.050.301.290.544.119; D23.050.550.325.119; D23.050.705.230.544.119; D23.101.140.075.119
Unique ID: D018395
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D018395
Scope Note: Sialylated Lewis(a) blood group carbohydrate antigen found in many adenocarcinomas of the digestive tract, especially pancreatic tumors.
Entry Term(s): 5-Acetylneuraminyl-2-3-Galactosyl-1-3-(Fucopyranosyl-1-4)-N-Acetylglucosamine; Antigen CA-19-9; CA 19-9 Antigen; CA 19.9 Antigen; Gastrointestinal Cancer Antigen; NAG-1,3-F-1,4-GN; Neu5Ac-2-3-Gal-1-3-(Fuc-1-4)-GlcNAc; Sialyl Le(a); Sialyl Lewis A; Sialyl Lewis A Antigen; Sialyl Lewis(a) Tetrasaccharide; alpha-Neu5Ac-(2-3)-beta-D-Gal-(1-3)-(alpha-L-Fuc-(1-4))-beta-D-GlcNAc
Previous Indexing: Antigens, Neoplasm (1984-1988); Antigens, Tumor-Associated, Carbohydrate (1989-1994)
Public MeSH Note: 1995; was see ANTIGENS, TUMOR-ASSOCIATED, CARBOHYDRATE 1989-1994; for Sialyl Lewis A see OLIGOSACCHARIDES 1994-2019
History Note: 1995; was see ANTIGENS, TUMOR-ASSOCIATED, CARBOHYDRATE 1989-1994; for Sialyl Lewis A use OLIGOSACCHARIDES 1994-2019
Date Established: 1995/01/01
Date of Entry: 1994/04/16
Revision Date: 2019/05/30

Allowable Qualifiers: administration & dosage (AD)

adverse effects (AE)

analysis (AN)

biosynthesis (BI)

blood (BL)

cerebrospinal fluid (CF)

chemistry (CH)

classification (CL)

drug effects (DE)

economics (EC)

genetics (GE)

history (HI)

immunology (IM)

isolation & purification (IP)

metabolism (ME)

pharmacology (PD)

physiology (PH)

poisoning (PO)

radiation effects (RE)

therapeutic use (TU)

toxicity (TO)

ultrastructure (UL)

urine (UR)

Biological Factors [D23]
- Antigens [D23.050]
  - Antigens, Neoplasm [D23.050.285]
    - Antigens, Tumor-Associated, Carbohydrate [D23.050.285.050]

Biological Factors [D23]
- Antigens [D23.050]
  - Antigens, Surface [D23.050.301]
    - Blood Group Antigens [D23.050.301.290]
      - Lewis Blood Group Antigens [D23.050.301.290.544]
        
        Lewis X Antigen [D23.050.301.290.544.059]
        
        CA-19-9 Antigen [D23.050.301.290.544.119]

Biological Factors [D23]
- Antigens [D23.050]
  - Epitopes [D23.050.550]
    - Antigens, Tumor-Associated, Carbohydrate [D23.050.550.325]

Biological Factors [D23]
- Antigens [D23.050]
  - Isoantigens [D23.050.705]
    - Blood Group Antigens [D23.050.705.230]
      - Lewis Blood Group Antigens [D23.050.705.230.544]
        
        Lewis X Antigen [D23.050.705.230.544.059]
        
        CA-19-9 Antigen [D23.050.705.230.544.119]

Biological Factors [D23]
- Biomarkers [D23.101]
  - Biomarkers, Tumor [D23.101.140]
    - Antigens, Tumor-Associated, Carbohydrate [D23.101.140.075]

CA-19-9 Antigen Preferred

Concept UI: M0027621
Scope Note: Sialylated Lewis(a) blood group carbohydrate antigen found in many adenocarcinomas of the digestive tract, especially pancreatic tumors.
Terms: CA-19-9 Antigen Preferred Term
Term UI T054846
Date01/01/1999
LexicalTag ACX
ThesaurusID NLM (1995); Sialyl Lewis A Antigen
Term UI T000953316
Date03/21/2019
LexicalTag NON
ThesaurusID NLM (2020); Sialyl Le(a)
Term UI T000953317
Date03/21/2019
LexicalTag NON
ThesaurusID NLM (2020); CA 19-9 Antigen
Term UI T054843
Date09/15/1993
LexicalTag NON
ThesaurusID NLM (1995); CA 19.9 Antigen
Term UI T054844
Date09/15/1993
LexicalTag NON
ThesaurusID NLM (1995); Antigen CA-19-9
Term UI T054845
Date01/26/1994
LexicalTag NON
ThesaurusID NLM (1995); Gastrointestinal Cancer Antigen
Term UI T054847
Date09/15/1993
LexicalTag NON
ThesaurusID NLM (1995); alpha-Neu5Ac-(2-3)-beta-D-Gal-(1-3)-(alpha-L-Fuc-(1-4))-beta-D-GlcNAc
Term UI T259403
Date01/01/1955
LexicalTag NON
ThesaurusID NLM (1994); NAG-1,3-F-1,4-GN
Term UI T259401
Date01/01/1955
LexicalTag NON
ThesaurusID NLM (1994); Neu5Ac-2-3-Gal-1-3-(Fuc-1-4)-GlcNAc
Term UI T259402
Date01/01/1955
LexicalTag NON
ThesaurusID NLM (1994); Sialyl Lewis A
Term UI T000953321
Date03/21/2019
LexicalTag NON
ThesaurusID NLM (2010); Sialyl Lewis(a) Tetrasaccharide
Term UI T000953318
Date03/21/2019
LexicalTag NON
ThesaurusID NLM (1994); 5-Acetylneuraminyl-2-3-Galactosyl-1-3-(Fucopyranosyl-1-4)-N-Acetylglucosamine
Term UI T000953319
Date03/21/2019
LexicalTag NON
ThesaurusID NLM (1994)

CA-19-9 Antigen MeSH Descriptor Data 2025