The double bleb sign
A) describes the early blastocyst.
B) is the sonographic appearance of the embryo disk lying between the secondary yolk sac and developing amniotic cavity.
C) distinguishes a pseudo sac from a gestational sac.
D) is eventually obliterated by the amniotic cavity.

Question

Quizplus · Accepted Answer

The double bleb sign is the term used to describe the distinctive sonographic appearance of the embryonic disk situated between the newly developed amniotic cavity and secondary yolk sac within the chorionic cavity at 4 to 5 weeks of gestational age.

The Double Bleb Sign