Chapter 25: The Fetal Face and Neck Flashcards
Which of the following would least likely cause an obstruction to fetal swallowing and thus polyhydramnios?
a. fetal goiter
b. epignathus
c. macroglossia
d. anophthalmia
d
The term nuchal refers to:
neck
The term for absence of the ear:
anotia
Which of the following may be caused by amniotic band syndrome?
a. cleft lip
b. microphthalmia
c. anophthalmia
d. epignathus
a
What scan plane would most likely optimize the visualization of a cleft lip?
coronal
Which of the following is not a true statement about the maxilla?
a. shortening of the maxilla may result in flattened facial features
b. the maxilla is typically long in the fetus with trisomy 21
c. a maxillary gap is best noted in the sagittal plane
d. the prefrontal space distance can help indicate maxillary abnormalities
b
Sonographically, you visualized a hypoechoic, round structure with a thin hyperechoic border in the anterior aspect of both fetal eyes. What is the explanation for this finding?
fetal lenses
The isolated enlargement of the fetal thyroid is referred to as:
fetal goiter
The absence of the eyes is termed:
anophthalmia
A reduction in the distance between the orbits is referred to as:
hypotelorism
An increased nuchal fold is most likely associated with:
trisomy 21
The most frequently encountered chromosomal abnormality associated with holoprosencephaly is:
trisomy 13
What is the term for a smaller than normal ear?
microtia
The fetal lip typically closes by:
8 weeks
The most common cause of hypertelorism is:
anterior cephalocele
Macroglossia is most commonly found with:
Beckwith-Wiedemann syndrome
An oral teratoma is referred to as:
epignathus
There is a definite link between microtia and what syndrome?
Down syndrome
Which of the following would be most difficult to detect sonographically?
a. cleft lip and cleft palate
b. isolated cleft lip
c. isolated cleft palate
d. isolated median cleft
c