Fetal Thorax
Which is NOT TRUE about CCAM?
A. CCAM can be below the diaphragm
B. CCAM can cause polyhydramnios
C. CCAM has three different classifications
D. CCAM type 1 involves a large cystic structure.
CCAM Cannot be below the diaphragm (then it wouldn't be in the lungs, now would it?)
An anomaly with large cranial defects, facial clefts, large body/wall defects and limb anomalies is called ___
Limb Body Wall Complex
Which three types of anterior wall defects are most common?
Gastroschisis, Umbilical Hernia, Omphalocele
A fetus with dilated echogenic bowel should be evaluated for all of the following except:
A. cystic fibrosis
B. Meconium Peritonitis
C. Duodenal Atresia
D. Bowel Obstruction
C. Duodenal Atresia (this would cause the double bubble anechoic sign. bowel obstruction causes meconium to back up through the actual bowel loops)
A condition in which both ovarian and testicular tissues are present is called ____
Hermaphroditism
Diaphragmatic Hernia occurs anteriorly and medially through the Foramen of ____
Morgagni
Rupture of the amnion which causes fetal parts to become entrapped in "sticky" chorion plates is called what?
Amniotic Band Syndrome
Which anterior abdominal wall defect is characterized by evisceration of the bowel to the right of the umbilicus?
Gastroschisis
What is the most reliable criterion for diagnosing "dilated" bowel?
Bowel Diameter
Where is the most common site of urine blockage in the MALE fetus?
Posterior Urethral Valve
Where is herniation through the Foramen of Bochdalek most common?
Posterior and on the Left Side
An omphalocele, along with four other common anterior wall defects (most notably ectopia cordis), are indicative of what Syndrome?
Pentaology of Cantrell
T/F: An omphalocele that contains ONLY bowel has a higher risk to be associated with chromosomal abnormalities.
True
What is the normal diameter of fetal bowel at 20 weeks?
3-5 mm
Where do permanent kidneys arise from in the embryologic stage?
Metanephros
T/F: In a right sided diaphragmatic hernia, the stomach lies above the diaphragm.
Which way will the heart be pushed?
FALSE! In a right sided hernia, The Liver, GB will possibly be above the diaphragm. The heart is then pushed toward the left!
This syndrome occurs almost exclusively in MALE fetus, and causes severe oligohydramnios, Megacystic Bladder, and visible ‘wrinkled’ appearance of the anterior abdominal wall and skin layer.
Prune-Belly Syndrome
Testicles remain in the Abdomen until the __ week, at which point they descend down into the scrotal sac.
28 weeks
Normal amniotic fluid volume cannot exclude renal agenesis before how many weeks gestation?
14-16 (At this stage is when kidneys begin to pick up production of urine!)
What is the most likely cause of bilateral hydronephrosis in the fetus?
Bladder Outlet Obstruction
A supernumerary lobe of the fetal lung that is cut off from the normal bronchiole tree is called ____
Pulmonary Sequestration
In duodenal atresia, 30% of fetuses also have what chromosomal abnormality?
Down Syndrome
In which of the following is fetal heart block the most common?
A. Asplenia
B. Total Situs Inversus
C. Polysplenia
D. Polyhydramnios
C. Polysplenia
Which Type of Potters Sequence includes bilateral renal agenesis?
Type II
What is the most common cystic mass seen in the female fetus?
Fetal Ovarian Cyst