A member asked:

Is it possible to see a fetal pole, but no yolk sac? isn't the fetal pole a measurement of the outer yolk sac?

A doctor has provided 1 answer
Dr. Jeff Livingston answered

Specializes in Obstetrics and Gynecology

Yolk sac: The yolk sac is visible and growing from about week 5-10. Then, it begins to decrease in size and ultimately disappears. If the doctor sees a fetal pole with a heartbeat then visualization of a yolk sac is not particularly important.

Answered 11/1/2020

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