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Twins, Conjoined MeSH Descriptor Data 2025


MeSH Heading
Twins, Conjoined
Tree Number(s)
C16.131.085.806
Unique ID
D014428
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D014428
Scope Note
MONOZYGOTIC TWINS who are joined in utero. They may be well developed and share only a superficial connection, often in the frontal, transverse or sagittal body plane, or they may share a partial duplication of a body structure. Alternatively, there may be a small and incompletely developed twin conjoined to a larger, more fully developed twin.
Entry Term(s)
Siamese Twins
Twins, Siamese
NLM Classification #
QS 675
Public MeSH Note
66
History Note
66
Date Established
1966/01/01
Date of Entry
1999/01/01
Revision Date
2015/12/16
Twins, Conjoined Preferred
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