Lymphocytes, Null MeSH Descriptor Data 2025

MeSH Heading: Lymphocytes, Null
Tree Number(s): A11.118.637.555.567.622; A15.145.229.637.555.567.584; A15.382.490.555.567.622
Unique ID: D008215
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D008215
Annotation: subpopulations: coordinate with LYMPHOCYTE SUBSETS
Scope Note: A class of lymphocytes characterized by the lack of surface markers specific for either T or B lymphocytes.
Entry Term(s): Null Cells
Previous Indexing: B Lymphocytes (1973-1981); Lymphocytes (1973-1981); T Lymphocytes (1973-1981)
Public MeSH Note: 82
History Note: 82
Date Established: 1982/01/01
Date of Entry: 1981/05/20
Revision Date: 2003/07/09

Allowable Qualifiers: chemistry (CH)

classification (CL)

cytology (CY)

drug effects (DE)

enzymology (EN)

immunology (IM)

metabolism (ME)

microbiology (MI)

parasitology (PS)

pathology (PA)

physiology (PH)

radiation effects (RE)

transplantation (TR)

ultrastructure (UL)

virology (VI)

Cells [A11]
- Blood Cells [A11.118]
  - Leukocytes [A11.118.637]
    - Leukocytes, Mononuclear [A11.118.637.555]
      - Lymphocytes [A11.118.637.555.567]
        
        Immunological Memory Cells [A11.118.637.555.567.269]
        
        Killer Cells, Natural [A11.118.637.555.567.537]
        
        Lymphocyte Subsets [A11.118.637.555.567.550]
        
        B-Lymphocytes [A11.118.637.555.567.562]
        
        T-Lymphocytes [A11.118.637.555.567.569]
        
        Lymphocytes, Null [A11.118.637.555.567.622]
        
        Lymphocytes, Tumor-Infiltrating [A11.118.637.555.567.650]

Hemic and Immune Systems [A15]
- Blood [A15.145]
  - Blood Cells [A15.145.229]
    - Leukocytes [A15.145.229.637]
      - Leukocytes, Mononuclear [A15.145.229.637.555]
        
        Lymphocytes [A15.145.229.637.555.567]
        
        Killer Cells, Natural [A15.145.229.637.555.567.537]
        
        Lymphocyte Subsets [A15.145.229.637.555.567.550]
        
        B-Lymphocytes [A15.145.229.637.555.567.562]
        
        T-Lymphocytes [A15.145.229.637.555.567.569]
        
        Lymphocytes, Null [A15.145.229.637.555.567.584]
        
        Lymphocytes, Tumor-Infiltrating [A15.145.229.637.555.567.650]

Hemic and Immune Systems [A15]
- Immune System [A15.382]
  - Leukocytes [A15.382.490]
    - Leukocytes, Mononuclear [A15.382.490.555]
      - Lymphocytes [A15.382.490.555.567]
        
        Killer Cells, Natural [A15.382.490.555.567.537]
        
        Lymphocyte Subsets [A15.382.490.555.567.550]
        
        B-Lymphocytes [A15.382.490.555.567.562]
        
        T-Lymphocytes [A15.382.490.555.567.569]
        
        Lymphocytes, Null [A15.382.490.555.567.622]
        
        Lymphocytes, Tumor-Infiltrating [A15.382.490.555.567.650]

Lymphocytes, Null Preferred

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