Penny fetal head and brain

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The cisterna magna should not exceed ____ in the transcerebellar plane?

10mm

Absence of the skull is?

Acrania

The third ventricle is located?

Between the two lobes of the thalamus

The anechoic midline brain structure located between the frontal horns of the lateral ventricles is the ?

Cavum septum pellucidum

Which of the following will also typically be absent with agenesis of the corpus callosum?

Cavum septum pellucidum

The structure located between the two lobes of the cerebellum is the ?

Cerebellar vermis

What cerebral malformation is as a result of agenesis or hypoplasia of the cerebellar vermis?

Dandy walker malformation

All of the following are sonographic features of alobar holoproencephaly except?

Dorsal cyst

The double fold of dura mater that divides the cerebral hemispheres is the ?

Falx cerebri

The third ventricle communicates with the fourth ventricle at the ?

Foramen of monro

Which of the following should not be included in the correct level for hc measurement?

Fourth ventricle

With what structure does the posterior fossa cyst associated with dmv communicate?

Fourth ventricle

All of the following are sonographic findings of Arnold chiari 11 malformation except?

Strawberry sign

The inerthalamic adhesion ( massa intermedia) passes through the?

Third ventricle

What chromosomal aberration is most often associated with holoproencephaly?

Trisomy 13

A strawberry shaped skull is commonly associated with ?

Trisomy 18

The sunburst of the cerebral soul I is a sonographic finding of ?

Agenesis of the corpus callosum

Which of the following is a genetic disorder that includes craniocynostosis, midline facial hypoplasia and syndactyly?

Alert syndrome

The most severe form of holoproencephaly is?

Alobar

The fourth ventricle is located?

Anterior to the cerebellar vermis

The most common cause of hydrocephalus in utero is?

Aqueductal stenosis

A lemon shaped skull is related to ?

Arnold chiari 11

The choroid plexus cyst could be associated with an increase risk of?

Arnold chiari 11

The condition in which the frontal horns are small and the occipital horns are enlarged is referred to as?

Colpocepahly

The band of tissue that allows communication between the right and left cerebral hemisphere is the ?

Corpus callosum

Enlargement of the frontal horns and narrowing of the occipital horns is termed?

Dandy walker malformation

The most accurate measurement for estimating gestational age is?

Hc

What cerebral abnormality are atypical facial features most commonly associated with?

Holoproencephaly

The sonographic finding of a fluid filled cranium with absence of cerebral tissue is consistent with?

Hydranencephaly

Which of the following would be the most likely fetal cranial findings with torch infections?

Intracranial calcifications

Which of the following is located on both sides of the midline ?

Lateral ventricles

The lack of soul I within the fetal cerebrum is a reliable indicator of?

Lissencephaly

Which of the following would not be normally located within the midline of the fetal brain?

Lobes of the thalamus

A cisterna magna that measure 15mm and a normal appearing cerebellum is most likely?

Mega cisterna magna

What fetal suture is located within the frontal bone along the midline of the forehead?

Metoptic suture

Following an intracranial hemmorhage, a cyst is noted within the cerebrum that communicates with the lateral ventricle. This is referred to as?

Porencephaly

A normal shaped skull is termed?

Scaphocephaly

The development of fluid filled cleft within the cerebrum is consistent with?

Schizencephaly

A cloverleaf shaped skull is related to?

Thanatophoric dysplasia

Dangling choroid sign is associated with ?

Ventriculomegaly


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