title: [Ultrasonic diagnosis in abortion of one twin. The vanishing twin phenomenon].
abstract: The article discusses the issue of the "vanishing twin" phenomenon as experienced in private practice. Out of a total of 1172 pregnancies resulting in vital babies, there were 11 pairs of twins. In addition ultrasonography in the first trimester showed 12 pregnancies with two amnion sacs where only one developed further, and the mother ultimately gave birth to a single baby. One triple pregnancy was found, where the mother gave birth to vital twins. This material included two normal/blighted ova, nine normal/missed abortions and one normal/malformed-anencephalic. Painless bleeding occurred in six patients between weeks five and fourteen. The incidental twin conception was 1:51 but only 1:106 produced vital twins.
authors.forename: E
authors.initials: E
authors.lastname: Gerdts
mesh_terms: D000030:Abortion, Missed / Q000175:diagnosis*; D000013:Congenital Abnormalities / Q000175:diagnosis; D004200:Diseases in Twins / Q000175:diagnosis; D005260:Female; D005313:Fetal Death / Q000175:diagnosis*; D005327:Fetal Resorption / Q000175:diagnosis*; D006801:Humans; D007231:Infant, Newborn; D011247:Pregnancy; D014427:Twins; D014463:Ultrasonography
vernacular_title: Ultralyddiagnostikk ved abort av en tvilling. "Vanishing twin"-fenomenet.