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Dr. Andrew Rynne
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Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Small Gestational Sac On Pregnancy Scan?

Today we had our first ultrasound. I did not like the results. My gf is 8 weeks and 2 days since first day of her last menstruation. The ultrasound showed a Sack of diameter 24mm, but no embryo. The ObGyn said it looked like a typical pregnancy of only 6 weeks. At 8 weeks there is usually an embryo visible with a visible heartbeat as well. What could this mean? Is it highly likely that the baby will be born handicapped, deformed or permanently ill? What does it mean that my gf s pregnancy is slow?
Thu, 7 Apr 2016
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OBGYN 's  Response
Hallow Dear,

If she is 8 weeks pregnant her ultrasonography should show the embryo with heart activity too.

Her gestational sac is of 6 weeks size only and there is no embryo in the sac and there are no heart activities of the baby noted. These are the typical findings of Blighted ovum.

Blighted ovum is a condition wherein there is pregnancy without the baby (embryo) in the gestational sac. Usually such sacs are having irregular margins. Please repeat the scan after a week. If still the embryo is missing from the gestational sac and there are no heart activities noted, the diagnosis of blighted ovum is confirmed.

Blighted ovum pregnancies do not continue and grow. If the pregnancy does not get aborted spontaneously, get it terminated from an Obstetrician ASAP. Delay may invite complications like infection or excessive bleeding.

I hope this helps you.

Dr. Nishikant Shrotri
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What Causes Small Gestational Sac On Pregnancy Scan?

Hallow Dear, If she is 8 weeks pregnant her ultrasonography should show the embryo with heart activity too. Her gestational sac is of 6 weeks size only and there is no embryo in the sac and there are no heart activities of the baby noted. These are the typical findings of Blighted ovum. Blighted ovum is a condition wherein there is pregnancy without the baby (embryo) in the gestational sac. Usually such sacs are having irregular margins. Please repeat the scan after a week. If still the embryo is missing from the gestational sac and there are no heart activities noted, the diagnosis of blighted ovum is confirmed. Blighted ovum pregnancies do not continue and grow. If the pregnancy does not get aborted spontaneously, get it terminated from an Obstetrician ASAP. Delay may invite complications like infection or excessive bleeding. I hope this helps you. Dr. Nishikant Shrotri