Empty gestational sac
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Empty gestational sacs can be due to a number of causes:
- anembryonic pregnancy (also known as "blighted ovum")
- early pregnancy (intrauterine): by 5.5 weeks gestational age, a yolk sac should be identifiable by transvaginal ultrasound
- pseudogestational sac with an ectopic pregnancy
- gestational trophoblastic disease: some first trimester moles may mimic an anembryonic pregnancy; correlation with beta hCG levels is helpful
Diagnosis
Ultrasound
Transabdominal or transvaginal ultrasound can be employed to illustrate the absence of an embryo in the gestational sac 4..
-</ul><h4>Diagnosis</h4><h5>Ultrasound</h5><p>Transabdominal or transvaginal ultrasound can be employed to illustrate the absence of an embryo in the gestational sac 4.. </p>- +</ul><h4>Diagnosis</h4><h5>Ultrasound</h5><p>Transabdominal or transvaginal ultrasound can be employed to illustrate the absence of an embryo in the gestational sac <sup>4</sup>.</p>
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