Trisomy MeSH Descriptor Data 2025

MeSH Heading: Trisomy
Tree Number(s): C23.550.210.050.750; C23.550.210.182.500; G05.365.590.175.050.750; G05.365.590.175.183.500; G05.700.131.750
Unique ID: D014314
RDF Unique Identifier: http://id.nlm.nih.gov/mesh/D014314
Annotation: coordinate IM with specific chromosome number (IM); TRISOMY 21 see DOWN SYNDROME is also available
Scope Note: The possession of a third chromosome of any one type in an otherwise diploid cell.
Entry Term(s): Chromosomal Triplication; Partial Trisomy
Public MeSH Note: 64
History Note: 64(63)
Date Established: 1964/01/01
Date of Entry: 1999/01/01
Revision Date: 2010/06/25

Allowable Qualifiers: diagnosis (DI)

genetics (GE)

immunology (IM)

pathology (PA)

physiopathology (PP)

Pathological Conditions, Signs and Symptoms [C23]
- Pathologic Processes [C23.550]
  - Chromosome Aberrations [C23.550.210]
    - Aneuploidy [C23.550.210.050]

Pathological Conditions, Signs and Symptoms [C23]
- Pathologic Processes [C23.550]
  - Chromosome Aberrations [C23.550.210]
    - Chromosome Duplication [C23.550.210.182]
      - Tetrasomy [C23.550.210.182.249]
      - Trisomy [C23.550.210.182.500]

Genetic Phenomena [G05]
- Genetic Variation [G05.365]
  - Mutation [G05.365.590]
    - Chromosome Aberrations [G05.365.590.175]
      - Aneuploidy [G05.365.590.175.050]
        
        Monosomy [G05.365.590.175.050.500]
        
        Tetrasomy [G05.365.590.175.050.625]
        
        Trisomy [G05.365.590.175.050.750]

Genetic Phenomena [G05]
- Genetic Variation [G05.365]
  - Mutation [G05.365.590]
    - Chromosome Aberrations [G05.365.590.175]
      - Chromosome Duplication [G05.365.590.175.183]
        
        Tetrasomy [G05.365.590.175.183.249]
        
        Trisomy [G05.365.590.175.183.500]

Genetic Phenomena [G05]
- Ploidies [G05.700]
  - Aneuploidy [G05.700.131]

Trisomy Preferred

Partial Trisomy Narrower

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