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Am J Perinatol. 2002 Nov;19(8):421-6.

Doppler flow velocimetry assisted diagnosis of an intrauterine synechia during pregnancy.

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Division of Maternal-Fetal Medicine, The Department of Obstetrics and Gynecology, St. Luke's-Roosevelt Hospital Center, Columbia University College of Physicians & Surgeons, New York, New York, USA.


The differential diagnosis of reflective intrauterine membranes during pregnancy includes amniotic bands of fetal origin or membranes of combined maternal-fetal origin. While the former have been associated with fetal transverse reduction defects or the lethal amniotic band syndrome, the latter are usually benign and consist of a preexisting uterine septation or synechia around which the fetal membranes fold or become enveloped. We present an unusual case in which a patient was noted at 19 weeks' gestation to have an intrauterine membrane of undetermined origin, appearing to contain a pulsating vessel. Color Doppler imaging and Doppler flow velocimetry clearly depicted a pulse synchronous with the maternal heart rate, defining the membrane as amniotic membranes surrounding a preexisting uterine synechia and not a true amniotic band. The pregnancy was otherwise uneventful and the patient delivered a healthy neonate at elective repeat cesarean at which time the presence of the uterine synechia was confirmed.

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