Congenital Abnormality
conjoined twins
con·joined twins
Subclass of:
Abnormality, Severe Teratoid
Definitions related to twins, conjoined:
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(conjoined twins) Monozygotic twins with variable incomplete separation into two during cleavage or early stages of embryogenesis. (Makris S, Solomon HM, Clark R, Shiota K, Barbellion S, Buschmann J, Ema M, Fujiwara M, Grote K, Hazelden KP, Hew KW, Horimoto M, Ooshima Y, Parkinson M, Wise LD. Terminology of developmental abnormalities in common laboratory mammals (Version 2). Part B. Birth Defects Res B Dev Reprod Toxicol. 2009 Aug;86(4):227-327.)CDISC TerminologyClinical Data Interchange Standards Consortium (CDISC), 2021
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(conjoined twins) A monoamniotic twin gestation in which the twins share one or more organs.NCI ThesaurusU.S. National Cancer Institute, 2021
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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.NLM Medical Subject HeadingsU.S. National Library of Medicine, 2021
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Conjoined twinning is one of the most fascinating human malformations and has also been reported in other animals�mammals, fishes, birds, reptiles, and amphibians. Treating conjoined twins can be a daunting challenge for the surgeon.WebMD, 2019
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Conjoined twins are two babies who are born physically connected to each other.Mayo Foundation for Medical Education and Research
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Conjoined twin, one of a pair of twins who are physically joined and often share some organs. Fusion is typically along the trunk of the body or at the front, side, or back of the head. In the case of symmetrical conjoined twins, the children usually have no birth anomalies except at the areas of...Encyclopedia Britannica, Inc., 2020
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