Megaloblasts MeSH Descriptor Data 2025

MeSH Heading: Megaloblasts
Tree Number(s): A11.118.290.330.531; A11.148.378.590.837.250.200.500; A11.443.240.330.531; A11.443.240.497.200.500; A15.145.229.334.330.531; A15.378.316.378.590.837.250.200.500
Unique ID: D008534
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D008534
Scope Note: Red blood cell precursors, corresponding to ERYTHROBLASTS, that are larger than normal, usually resulting from a FOLIC ACID DEFICIENCY or VITAMIN B 12 DEFICIENCY.
See Also: Anemia, Megaloblastic
Public MeSH Note: 91; was see under ERYTHROCYTES, ABNORMAL 1975-90; was see under ERYTHROCYTES 1963-74
Online Note: search ERYTHROCYTES 1966-74
History Note: 91(75); was see under ERYTHROCYTES, ABNORMAL 1975-90; was see under ERYTHROCYTES 1963-74
Date Established: 1991/01/01
Date of Entry: 1999/01/01
Revision Date: 2008/07/08

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]
  - Erythrocytes [A11.118.290]
    - Erythrocytes, Abnormal [A11.118.290.330]

Cells [A11]
- Bone Marrow Cells [A11.148]
  - Hematopoietic Stem Cells [A11.148.378]
    - Myeloid Progenitor Cells [A11.148.378.590]
      - Megakaryocyte-Erythroid Progenitor Cells [A11.148.378.590.837]
        
        Erythroid Precursor Cells [A11.148.378.590.837.250]
        
        Erythroblasts [A11.148.378.590.837.250.200]
        
        Megaloblasts [A11.148.378.590.837.250.200.500]

Cells [A11]
- Erythroid Cells [A11.443]
  - Erythrocytes [A11.443.240]
    - Erythrocytes, Abnormal [A11.443.240.330]

Cells [A11]
- Erythroid Cells [A11.443]
  - Erythrocytes [A11.443.240]
    - Erythroid Precursor Cells [A11.443.240.497]
      - Erythroblasts [A11.443.240.497.200]
        
        Megaloblasts [A11.443.240.497.200.500]

Hemic and Immune Systems [A15]
- Blood [A15.145]
  - Blood Cells [A15.145.229]
    - Erythrocytes [A15.145.229.334]
      - Erythrocytes, Abnormal [A15.145.229.334.330]
        
        Acanthocytes [A15.145.229.334.330.100]
        
        Erythrocyte Inclusions [A15.145.229.334.330.340]
        
        Megaloblasts [A15.145.229.334.330.531]
        
        Spherocytes [A15.145.229.334.330.802]

Hemic and Immune Systems [A15]
- Hematopoietic System [A15.378]
  - Bone Marrow Cells [A15.378.316]
    - Hematopoietic Stem Cells [A15.378.316.378]
      - Myeloid Progenitor Cells [A15.378.316.378.590]
        
        Megakaryocyte-Erythroid Progenitor Cells [A15.378.316.378.590.837]
        
        Erythroid Precursor Cells [A15.378.316.378.590.837.250]
        
        Erythroblasts [A15.378.316.378.590.837.250.200]
        
        Megaloblasts [A15.378.316.378.590.837.250.200.500]

Megaloblasts Preferred

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