Large yolk sac is a poor prognostic sign #ultrasound #pregnant #baby

インデックス作成: 2026-05-17

[00:00:00]A large yolk sac is a poor prognostic sign. This ultrasound shows an 8-week pregnancy that stopped developing at 6 weeks.

[00:00:10]Inside the uterine cavity, a gestational sac with a single embryo is visualized.

[00:00:16]The crown-rump length of the embryo is 3 mm, corresponding to 6 weeks of pregnancy.

[00:00:23]No fetal heartbeat is detected.

[00:00:26]The yolk sac measures 9.2 mm.

[00:00:29]Normally, the yolk sac should not exceed 6 mm at this gestational age.

[00:00:36]This is one of the indicators of a normally developing pregnancy.