Fetal Face Flashcards
Facial abnormalities that have been linked with holoprosencephaly:
cebocephaly, ethmocephaly, cyclopia, and cleft lip with or without cleft palate
The ocular diameter is a measurement that is performed from the _______ wall of the orbit to the _____ wall of the same orbit.
lateral/medial
The binocular diameter is made from the _______ margin of one orbit to the _____ margin of the other orbit.
lateral/lateral
What is termed the absence of the eyes:
anopthalmia
Increased distance between the orbits is refereed to as:
hypertelerism
Hypertelorism is more accurately diagnosed utilizing the __________ diameter
interocular
The most common cause of hypertelorism is :
anterior cephalocele
Hypertelorism is associated with ___________ and many chromosomal abnormalities
craniosynostosis
A reduction in the distance between the orbits is :
hypotelorism
The most common cause of hypoterlorism is :
holoprosencephaly with trisomy 13 being the most frequently associated chromosomal abnormality
There is a notalbe link between the absence of the fetal nasal bone and _____
down syndrome
The nasal bone can be measured for signs of
hypoplasia
Anomalies of the ears, including low-set ears, have been noted with trisomies:
13, 18, 21
Small ears, referred to as :
microtia
microtia has a strong link with :
trisomy 21