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Herniation of the small bowel in a midline sac measuring less than 7 mm seen in early gestation
Physiologic herniation
Fluid filled structure in the left fetal abdomen not crossing the midline.
Stomach
Elliptical measurement taken at the level of the stomach and umbilical vein in transverse view
Abdominal Circumference
2 tissues that arise from the Trophoblast
Cytotrophoblast and Syncytiotrophoblast
Bright areas in the fetal lower abdomen appearing as bright as bone
Echogenic Bowel
Midline abdominal wall defect with viscera covered by a membrane.
Omphalocele
Accumulation of excess fluid in the fetal abdomen
Ascites
structure visualized immediately anterior to the vertebral bodies in AC view
Aorta
Blastocyst cavity remolded this number of times
2- Primary and secondary yolk sac
Echogenic material seen in fluid filled structure below the fetal liver
Gallstones
Paraumbilical defect typically to the right of the umbilical cord insertion with evisceration of bowel
Gastroschisis
Fluid filled structure in fetal abdomen that is typically not seen filled with fluid until the third trimester
Bowel
J shaped structure seen in the AC transverse view
Umbilical vein
Germ layer giving rise to the GI tract
Endoderm
Abdominal wall defect that is high in the abdomen and associated with defect in diaphragm, distal sternal defect, pericardial defect and cardiac abnormalities
Pentalogy of Cantrell
Complex large anterior wall defect with fetus fixed to placenta with deformities of the spine and limbs.
Body Stalk Anomaly
Pear shaped fluid filled structure in the right fetal abdomen
Gallbladder
Diaphragm
2 areas of the gut in which the ectoderm and endoderm are not separated by the mesoderm
oropharyngeal membrane and cloacal membrane
Most common primary malignancy in fetal liver
Hepatoblastoma
Defect in the abdominal wall below the attachment of the umbilical cord
Bladder Exstrophy
Double Bubble in the left fetal abdomen
Duodenal atresia
Localized bulging of the fetal intraabdominal umbilical vein with diameter ≥ 9 mm
Umbilical Vein Variz
Outpouching formed when the yolk sac fails to regress completely
Mekel diverticulum
Duplication of the gastrointestinal tract with enteric lining and muscular wall
Enteric Duplication cyst