Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-13T11:11:56.281Z Has data issue: false hasContentIssue false

Zygosity and Placental Structure in Monochorionic Twins

Published online by Cambridge University Press:  01 August 2014

G. Mortimer*
Affiliation:
University Department of Pathology, Royal Infirmary and Royal Maternity Hospital, Glasgow, UK
*
University Department of Pathology, Regional Hospital, Galway, Ireland

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

To test the assumption that monochorionic twins are monozygotic, cord bloods from 12 sets of monochorionic twins were tested for a total of 16 red cell antigens. Discrepancies were noted among the minor blood groups in 3 of the 12 sets. The result of this pilot study strengthens the contention of others who have previously questioned the general acceptance that monochorionicity and monozygosity are synonymous.

Type
Research Article
Copyright
Copyright © The International Society for Twin Studies 1987

References

REFERENCES

1.Altshuler, G (1982): The placenta, how to examine it, its normal growth and development. In Naeye, RL, Kissane, JM, Kaufman, N (eds): Perinatal Diseases. Baltimore: Williams and Wilkins.Google Scholar
2.Bieber, FR, Nance, WE, Morton, CC, et al (1981): Genetic studies of an acardiac monster: evidence of polar body twinning in man. Science 213:775777.CrossRefGoogle ScholarPubMed
3.Edwards, JH, Dent, T, Kahn, J (1966): Monozygotic twins of different sex. J Med Genet 3:117123.CrossRefGoogle ScholarPubMed
4.Fox, H (1978): The placenta in multiple pregnancy. In Bennington, JL (ed): Pathology of the Placenta. London: WB Saunders.Google ScholarPubMed
5.Johnston, C, Pyke, PA, Andworth, AG, Wolf, E (1983): HLA-DR typing in identical twins with insulin dependent diabetes mellitus: difference between concordant and discordant pairs. Br Med J 286:253255.CrossRefGoogle ScholarPubMed
6.Lejeune, J, Lafourcade, J, Scharer, K, et al (1962): Monozygotisme hétérocaryote, jumeau normal et jumeau trisomique 21. CR Acad Sci 254:44044406.Google Scholar
7.Morison, JE (1970): Multiple births. In Foetal and Neonatal Pathology. London: Butterworths.Google Scholar
8.Perrin, EVDK (1982): Placental diagnosis. In Aladjem, S, Vidyasagar, D (eds): Atlas of Perinatology. Philadelphia: WB Saunders.Google Scholar
9.Wiggleswotth, JS (1984): The placenta in perinatal pathology. In Bennington, JL (eds): Perinatal Pathology. Philadelphia: WB Saunders.Google Scholar