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Fetal Abdomen
OB/GYN Sonography
24
Medical
Undergraduate 4
03/25/2009

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Cards

Term
When normal midgut herniation is seen
Definition
9-12 weeks
Term
CRL at which midgut herniation should return by
Definition
44 mm
Term
Characteristic of bowel that is a soft marker for Down's, placental abruption, and cystic fibrosis
Definition
echogenic (brighter than bone)
Term
Normal small bowel should not exceed what measurement?
Definition
7 mm in diameter
Term
Large bowel diameter at term should not exceed what?
Definition
23 mm
Term
When should the fetal bladder be seen by?
Definition
14 weeks
Term
When fetal swallowing begins
Definition
11 weeks
Term
VACTERL
Definition
vertebrae, anal atresia, cardiac, tracheal-esophageal fistula, renals, limbs
Term
Esophagus is obstructed due to a segmen that has complete obliteration of the lumen
Definition
esophageal atresia
Term
S/A of esophageal atresia
Definition
small stomach bubble, polyhydramnios, IUGR
Term
Protrusion of stomach into the thorax through the diaphragm
Definition
congenital diaphragmatic hernia
Term
Which side is CDH more common in?
Definition
left
Term
Prognosis of CDH
Definition
poor
Term
Mortality rate of partial situs inversus
Definition
80-90%
Term
Failure of primitive gut to recanalize leading to partial or complete obstruction
Definition
duodenal atresia
Term
S/A of duodenal atresia
Definition
"double bubble", possible polyhydramnios
Term
Impactionof abnormally thick and sticky meconium in the small bowel resulting in obstruction of the distal ileum and thickened matted bowel loops
Definition
meconium ileus
Term
Which bowel contains haustra?
Definition
large
Term
Failure to pass meconium
Definition
meconium plug
Term
Meconium leaks or spills out of the bowel through a perforation, causing irritation and inflammation
Definition
meconium peritonitis
Term
Lack of normal opening between the anus and rectum
Definition
Anorectal atresia
Term
Cells responsible for peristalsis
Definition
Ganglion
Term
Ganglion cells are missing, not allowing for feces to pass, eventually becoming impacted
Definition
Hirschsprung disease
Term
Focal dilation of umbilical vein, a developmental anomaly
Definition
umbilical vein varix
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