Anencephaly in a Mono-amniotic Twin

Pedlow, P. R. B.

doi:10.1136/bmj.2.5258.997-a

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Cited by 8 publications

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“…These hypotheses are modified and developed in this study in the light of a recent collection of twin studies (Rogers and Weatherall, 1976 PREGNANCIES Wharton, Edwards, and Cameron (1968) found only 18 pairs of mono-amniotic twins in a series of 581 twin pairs, indicating the rarity of this type of twinning. Pedlow (1961) gave the incidence of severe congenital malformation in his collected series of mono-amniotic twins as 9-2%.…”

mentioning

confidence: 99%

Anencephalus, Spina Bifida, twins, and teratoma.

Rogers¹

1976

Journal of Epidemiology & Community Health

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mentioning

confidence: 99%

Anencephalus, Spina Bifida, twins, and teratoma.

Rogers¹

1976

Journal of Epidemiology & Community Health

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Anencephaly in one monoamniotic‐monochorionic twin and encephalocele in the other

Pütz

Rehder

Opitz³

et al. 1985

Am. J. Med. Genet.

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This is a report of monoamniotic-monochorionic (ie, probably MZ) twins, one of which had anencephaly, whereas the co-twin died of complications of prematurity. Autopsy in this seemingly nonmalformed twin showed a small encephalocele. The literature on MZ twins with discordant anencephaly is often contradictory. It is suggested that this might be due to the difficulty of determining zygosity on the one hand and identifying discordance or concordance on the other. This case is presented as an example of this difficulty; it is discordant with respect to anencephaly, but concordant in the sense of "dysraphic" disturbances.

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