Article

Conjoined twins detected in the first trimester: a review.

Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan.
Taiwanese journal of obstetrics & gynecology 12/2011; 50(4):424-31. DOI:10.1016/j.tjog.2011.10.005 pp.424-31
Source: PubMed

ABSTRACT Conjoined twinning occurs in 1 in 100 sets of monozygotic twins, 1 in 50,000 gestations or 1 in 250,000 live births. With the advent of ultrasound technology, prenatal diagnosis of conjoined twins is possible. This article provides a comprehensive review of conjoined twins detected in the first trimester including fetal gender, maternal age, parity, types of fusion, related ultrasound abnormalities, perinatal outcome and association with assisted reproduction.

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Keywords

comprehensive review
 
conjoined twins
 
fetal gender
 
first trimester
 
maternal age
 
monozygotic twins
 
perinatal outcome
 
ultrasound abnormalities
 
ultrasound technology
 

Chih-Ping Chen