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Case Review: Ultrasound of Complete Molar Pregnancy
In this radiology lecture, the ultrasound appearance of complete molar pregnancy is revealed.
Key points include:
1) AKA hydatiform mole = Most common form of gestational trophoblastic disease.
2) Gestational trophoblastic neoplasia (GTN) less common = Invasive mole and choriocarcinoma.
3) Approximately 1/1,000 pregnancies is a molar pregnancy.
4) Most common in females under age 20 and over age 35.
5) Two types of molar pregnancy: Complete (most common) and partial.
6) Complete: Diploid (paternal DNA only), no fetus, more likely to be complicated by GTN.
7) Partial: Triploid (maternal and paternal DNA), abnormal fetus or fetal parts, harder to diagnose.
8) Complete hydatiform mole presentation: Vaginal bleeding, enlarged uterus inconsistent with dates, hyperemesis. Markedly elevated β-hCG level (variable for partial molar pregnancies).
9) Large theca lutein cysts due to ovarian stimulation from elevated β-hCG, but uncommon.
10) US: Heterogeneous, echogenic mass (“snowstorm” appearance), small anechoic cystic spaces (“cluster of grapes”) = hydropic chorionic villi.
11) Treatment: Dilation & curettage. β-hCG levels monitored until no longer detectable to confirm no residual disease.
To learn more about the Samsung RS85 Prestige ultrasound system, please visit: https://www.bostonimaging.com/....rs85-prestige-ultras
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