Open AccessMonoamniotic Twins Diagnosed by Ultrasound in the First Trimester
Author(s) -
Mantoni Margit,
Pedersen Jan Fog
Publication year - 1980
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.3109/00016348009155449
Subject(s) - medicine , in utero , gestation , fetus , obstetrics , ultrasound , pregnancy , first trimester , dizygotic twins , twin pregnancy , conjoined twins , second trimester , ultrasonography , gynecology , radiology , genetics , biology
A case of monoamniotic twins was diagnosed by ultrasonic scanning in the first trimester through the presence of two fetuses in one gestation sac. The fetuses died in utero in weeks 17 and 25. The possible ultrasound appearance of the various types of monozygotic and of dizygotic twins in early pregnancy is discussed and a scheme is suggested which allows some differentation.