"Gestational Sac" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
Round-shaped structure usually located in the upper fundus of the UTERUS in early pregnancy. It comprises EMBRYO; AMNIOTIC FLUID; and YOLK SAC. It is visible in PRENATAL ULTRASONOGRAPHY by the fifth week of pregnancy. Its size is often used to determine and monitor GESTATIONAL AGE; FETAL GROWTH; and PREGNANCY COMPLICATIONS.
- Gestational Sac
- Gestational Sacs
- Sac, Gestational
- Sacs, Gestational
- Gestation Sac
- Gestation Sacs
- Sac, Gestation
- Sacs, Gestation
Below are MeSH descriptors whose meaning is more general than "Gestational Sac".
Below are MeSH descriptors whose meaning is more specific than "Gestational Sac".
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