Chapter 25 (The Fetal Face and Neck) Flashcards
The absence of the eyes is termed:
anophthalmia
A reduction in the distance between the orbits is referred to as:
hypotelorism
The most frequently encountered chromosomal abnormality associated with holoprosencephaly is:
Trisomy 13
The fetal lip typically closes by:
8 weeks
The most common cause of hypertelorism:
anterior cephalocele
Macroglossia is most commonly found with:
Beckwith-Wiedemann syndrome
An oral teratoma is referred to as:
epignathus
Cleft lip and cleft palate may exist with:
Amniotic band syndrome, holoprosencephaly, Trisomy 13
An increase distance between the orbits is referred to as:
hypertelorism
The optimal scan plane to visualize micrognathia is:
sagittal
A cystic hygroma is the result of:
an abnormal accumulation of lymphatic fluid within the soft tissue
A cystic hygroma is found in all of the following conditions except: A. Edwards syndrome B. Hydranencephaly C. Turner sydrome D. All of the above
Hydranencephaly
Nuchal thickening is most commonly associated with:
Down syndrome
Micrognathia is a condition found in:
Trisomy 18
The most common location of a cystic hygroma is within the:
neck
An unusual protuberance of the tongue is termed:
macroglossia
Facial anomalies, when discovered, should prompt the sonographer to analyze the brain closely for signs of:
holoprosencephaly
The measurement obtained between the lateral walls of the orbits is referred to as the:
binocular diameter
A large, mostly cystic mass is noted in the cervical spine region of a fetus. This likely represents a :
cystic hygroma
A group of abnormalities associated with the entrapment of fetal parts and fetal amputations is:
amniotic band syndrome
The growth disorder syndrome synonymous with organ, skull, and tongue enlargement is:
Beckwith-Wiedemann syndrome
Which of the following is also referred to as Patau Syndrome?
Trisomy 13
Close-set eyes and a nose with a single nostril is termed:
cebocephaly
An abnormal division in the lip is referred to as:
cleft lip
Fusion of the orbits is termed:
cyclopia
The thickness of the nuchal fold in the second trimester should not exceed:
6mm
A small mandible is termed:
micrognathia
The condition in which there is no nose and a proboscis separating two close-set orbits is:
ethmocephaly
All of the following are sonographic features of holoprosencephaly except: A. cystic hydroma B. proboscis with cyclopia C. Fused thalamus D. Monoventricle
A. cystic hydroma
