CH 25 Flashcards
The fetal face and neck
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 is:
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 syndrom, holoprosencephaly, and 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:
- Edwards syndrome
- Hydranencephaly
- Turner Syndrome
- all
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 most likely represents a:
Cystic hygroma
A group of abnormalities associated with the entrapment of fetal parts and fetal amputation 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
Which of the following is also referred to as Trisomy 21?
Down Syndrome
The thickness for the nuchal fold in the second trimester should not exceed:
6 mm
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:
Cystic hydroma
