Case Studies
Fetus presents with enlarged occipital horns and small frontal horns. What is the diagnosis?
Colpocephaly
What structures need to be visualized in order to measure the BPD?
CSP, thalamus, and falx cerebri
Sonographic appearance of alobar holoprosencephaly
horseshoe shaped monoventricle
Most common cause of hydrocephalus in utero
aqueductal stenosis
Define mesocephalic
normal to medium sized fetal skull
Arnold-Chiari II Malformation
What passes through the third ventricle to connect the two lobes of the thalamus
massa intermedia
Sonographic appearance of anencephaly
frog face
Premature fusion of fetal cranial sutures
Define hypertelorism
increased distance between eyes, commonly caused by anterior cephalocele
Fetus has an atrial diameter of 13mm accompanied by a dangling choroid sign and an obstruction of CSF flow. What is the diagnosis?
hydrocephalus
How many vesicles are a part of the fetal brain during embryologic development? What are their names?
3: prosencephalon, mesencephalon, and rhombencephalon
Sonographic appearance of Dandy-Walker complex
Cystic dilaton of cisterna magna and 4th ventricle
Macroglossia is most commonly associated with what syndrome?
Beckwith-wiedemann syndrome
Define dolichocephaly
elongated, narrow fetal cranium