Conjoined twins detected in the first trimester: a review.
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.
Department of Obstetrics and Gynecology, Mackay Memorial Hospital, Taipei, Taiwan. cpc_mmh@yahoo.com
Chih-Ping
CP
Chen
Chin-Yuan
CY
Hsu
Jun-Wei
JW
Su
Hsiao-En
HE
Cindy Chen
Alan
A
Hwa-Ruey Hsieh
Alex
A
Hwa-Jiun Hsieh
Wayseen
W
Wang
D005260:Female; D006801:Humans; D008423:Maternal Age; D010298:Parity; D011247:Pregnancy; D011256:Pregnancy Outcome; D011261:Pregnancy Trimester, First; D027724:Reproductive Techniques, Assisted; D017678:Sex Distribution; D014428:Twins, Conjoined; D016216:Ultrasonography, Prenatal