CASE 5
History: A pregnant patient presents for a routine 20-week ultrasound scan.
1. Which of the following would be included in the differential diagnosis? (Choose all that apply.)
D. Semilobar holoprosencephaly
2. Which of the following is not a true statement concerning choroid plexus cyst?
A. These cysts are most frequently benign findings.
B. These cysts are often transient findings and resolve by the third trimester.
C. These cysts may be either unilateral or bilateral.
D. These cysts are associated with an increased risk of hydrocephalus.
3. Choroid is present in all portions of the lateral ventricles except:
A. The frontal horn of the lateral ventricle
B. The body of the lateral ventricle
C. The trigone of the lateral ventricle
4. Which chromosomal abnormality is most commonly associated with choroid plexus cysts?
A. Trisomy 13
B. Trisomy 18
C. Trisomy 21
D. XO karyotype
