Chapter 62 and 63 Flashcards
beckwith-wiedemann syndrome
A rare group disorder having in common the coexistence of an omphalocele, macroglossia, visceromegaly
Amniotic band syndrome:
Is a rupture of the amnion, which leads to entrapment or entanglement of the fetal parts by the “sticky” chorion.
early entrapment may lead to severe craniofacial defects and internal malformation
gastroschisis
- always locate on rt. of umbilicus
- opening in the layer of the abdominal wall with herniation of the bowel and infrequently stomach/genitourinary organs- rarely liver
Haustral folds:
Part of the colon; helps to differentiate it from the small bowel.
Pentalogy of Cantrell
Rare and associated of a cleft distal sternum, diaphragmatic defect, midline anterior ventral, wall defect, pericardial defect, ectopic heart
Pentalogy of Cantrell is associated with which trisomies ?
13,18, 45, and turner’s syndrome
herniated loops of bowel normally return and rotate into position within the abdominal cavity by?
12th week
A FETUS WITH PARTIAL SITUS INVERSUS DEMONSTRATES THE:
STOMACH ON THE RIGHT, HEART ON THE LEFT
IN A TRANSVERSE IMAGE, EVIDENCE OF A DOUBLE BUBBLE IN A FETUS WITH TRISOMY 21 REPRESENTS
DUODENAL ATRESIA
A CYSTIC GROWTH OF THE COMMON BILE DUCT IS:
A CHOLEDOCHAL CYST
A REMNANT OF THE PROXIMAL PART OF THE YOLK STALK IS:
MECKEL’S DIVERTICULUM
THE DISTINCTION OF THE LARGE BOWEL FROM THE SMALL BOWEL IS POSSIBLE AS EARLY AS:
20 weeks
An anomaly with large cranial defects, facial cleft, large body-wall defects, and limb abnormalities is called which one of the following?
Limb-body wall complex
If omphalocele and scoliosis are found in the fetus, which one of the following conditions should be considered?
Limb-body wall complex
The sonographer may be able to detect gastroschisis after
12 weeks
Fetuses with an omphalocele that contains only a bowel have a higher risk for?
chromosomal abnormalities
The herniation of an omphalocele is covered by a membrane that consists of the ____ and ____.
Amnion and peritoneum
a defect in the lower abdominal wall and anterior wall of the urinary bladder.
Bladder exstrophy
Cloacal exstrophy
- occurs early in development with involvement of the primitive gut and persistent cloaca. rare and more complex
- affects the lower abdominal wall structures of infants In utero
Anomalies most frequently associated with ectopia cordis include?
omphalocele, cardiovascular malformations, and craniofacial defects.
duodenal stenosis
Narrowing
Duodenal atresia
Blockage of duodenal lumen
Which one of the following malformations of the midgut is most common?
Meckel diverticulum
Small-bowel disorder marked by the presence of thick meconium in the distal ileum is?
meconium Ileus
VACTERL is a group of anomalies associated with which one of the following?
Esophageal atresia
Oligohydramnios
Swallowing disorder
IMA supply 1/3 or 2/3 of the colon?
1/3
SMA supply 1/4 or 2/3 of the colon?
2/3
what are the most common types of abdominal wall defects?
gastroschisis
omphalocele
umbilical hernia
atresia means?
not formed
meckel’s diverticulum is?
- most common malformation of midgut
2. prox. part of yolk stalk that fails to degenerate and disappear during early fetal period.
most fetuses older than _______ weeks should have fluid in their stomach.
14 to 16 weeks
most common anomalies with esopageal atresia are?
anorectal atresia and VACTERL
30 % of fetuses with ____ have trisomy 21 ( down syndrome).
duodenal atresia
most cases of meconium ileus occur in newborns with____?
cystic fibrosis.
meconium ileus is?
A small-bowel disorder marked by presence of thick meconium in distal ileum
sonographic findings of calcification seen on peritoneal surface or in scrotum vis processus vaginalis comes from?
mecoium peritonitis
A sonolucent band identified near the fetal anterior abdominal wall represents which one of the following?
Pseudoascites
Pentalogy of Cantrell (POC) is composed of two major abnormalities, they are?
ectopia cordis and a midline thoracoabdominal wall defect.
