Chapter 24

Question 1

2. The choroid plexus cyst could be associated with an increase risk of:
   a. Trisomy 13
   b. Trisomy 4
   c. Arnold-Chiari Il malformation
   d. Trisomy 18

Answer 1

Trisomy 18

Question 2

4. Which of the following is located on both sides of the midline?
   a. Interhemispheric fissures
   b. Third and fourth ventricles
   c. Lateral ventricles
   d. Third ventricle and cerebral aqueduct

Answer 2

Lateral ventricles

Question 3

6. The double fold of dura mater that divides the cerebral hemispheres is the:
   a. Cerebellum
   b. CSP
   c. Corpus callosum
   d. Falx cerebri

Answer 3

Falx cerebri

Question 4

10. Enlargement of the frontal horns and narrowing of the occipital horns is termed:
    a. Holoprosencephaly
    b. DWM
    c. Colpocephaly
    d. Apert syndrome

Answer 4

Colpocephaly

Question 5

11. The interthalamic adhesion (massa intermedia)
    passes through the:
    a. Third ventricle
    b. Fourth ventricle
    c. Cisterna magna
    d. CSP

Answer 5

Third ventricle

Question 6

13. Which of the following is a genetic disorder that includes craniosynostosis, midline facial hypoplasia, and syndactyly?
    a. Lobar holoprosencephaly
    b. Beckwith-Wiedemann syndrome
    c. Arnold-Chiari I| malformation
    d. Apert syndrome

Answer 6

Apert syndrome

Question 7

14. The third ventricle is located:
    a. Anterior to the thalamus
    b. Anterior to the cerebellar vermis
    c. Between the two lobes of the thalamus
    d. Superior to the corpus callosum

Answer 7

Between the two lobes of the thalamus

Question 8

16. Dangling choroid sign is associated with:
    a. Ventriculomegaly
    b. Hydranencaphaly
    c. Lissencephaly
    d. Meckel-Gruber syndrome

Answer 8

Ventriculomegaly

Question 9

18. The fourth ventricle is located:
    a. Posterior to the CSP
    b. Between the frontal horns of the lateral ventricles
    c. Anterior to the cerebellar vermis
    d. Medial to the third ventricle

Answer 9

Anterior to the cerebellar vermis

Question 10

19. The structure located between the two lobes of the cerebellum is the:
    a. Cerebellar vermis
    b. Cerebellar tonsils
    c. Falx cerebri
    d. Corpus callosum

Answer 10

Cerebellar vermis

Question 11

23. A strawberry-shaped skull is commonly associated with:
    a. Trisomy 21
    b. Trisomy 15
    c. Trisomy 18
    d. Trisomy 13

Answer 11

Trisomy 18

Question 12

25. The band of tissue that allows communication between the right and left cerebral hemispheres is the:
    a. Falx cerebri
    b. Corpus callosum
    c. Cerebellar vermis
    d. CSP

Answer 12

Corpus callosum

Question 13

26. A cloverleaf-shaped skull is related to:
    a. Trisomy 18
    b. Meckel-Gruber syndrome
    c. Trisomy 13
    d. Thanatophoric dysplasia

Answer 13

Thanatophoric dysplasia

Question 14

34. The lack of sulci within the fetal cerebrum is a reliable indicator of:
    a. Agenesis of the corpus callosum
    b. Lissencephaly
    c. Schizencephaly
    d. Porencephaly

Answer 14

Lissencephaly

Question 15

40. Which of the following should not be included in the correct level for an HC measurement?
    a. Falx cerebri
    b. Fourth ventricle
    c. Thalamus
    d. CSP

Answer 15

Fourth ventricle