CASE 75
History: A pregnant woman known to be carrying twins presents for a routine assessment.
1. What should be included in the differential diagnosis of a twin pregnancy without a clear membrane between two fetuses with one placenta? (Choose all that apply.)
2. What type of twin pregnancy is represented in Figures A and B?
3. In what percentage of twin pregnancies are the twins in separate amniotic cavities?
A. 20%
B. 99%
C. 80%
D. 10%
C. Absence of a fetal heart rate
