A 27-year-old woman comes to the physician because of vaginal bleeding, nausea, and vomiting. She says she recently had a positive home pregnancy test and her last menstrual period was 7 weeks ago. Pelvic examination shows an enlarged uterus and a pelvic ultrasound shows a multiloculated cystic structure within the uterine cavity, but there is no clearly defined embryo. Serum hCG levels are markedly elevated (>100,000 mIU/mL). The intrauterine mass is removed by dilation and curettage, and placental-like tissue is seen but there is an absence of fetal tissue. Which of the following karyotypes is most likely to be found in the specimen?
A) 23,X
B) 45,XO
C) 46,XX
D) 47,XXY
E) 69,XXY
A) 23,X
B) 45,XO
C) 46,XX
D) 47,XXY
E) 69,XXY