Regular ANC visit at 18 weeks of gestation. No complaints.
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Single, live, intrauterine pregnancy of 19 weeks 3 days with regular fetal cardiac activity (FHR-148bpm)
Placenta is posterior.
There is a localized echogenic area measuring 37x46x33 mm (30.5ml) in between chorionic membrane and the fetal aspect of the placenta which shows no flow on color Doppler interrogation.
Collection of blood between the chorionic membrane overlying the placenta and the villous chrorion (fetal aspect of the placenta) is term as preplacental hematoma 1. The source of bleeding is possibly from fetal vessels and may be associated with maternal hypertension. They have less clinical significance. However, patient may present with vaginal bleeding or uterine contraction resulting in abortion, intrauterine growth restriction (IUGR), preterm labor, placental abruption and fetal distress.
On the other hand retroplacental haemorrhage is behind the placenta, separating placenta from the uterine wall.
- 1. Kurjak A, Chervenak FA. Donald School Textbook of Ultrasound in Obstetrics and Gynecology. Jaypee Brothers Medical Pub. (2011) ISBN:9350252597. Read it at Google Books - Find it at Amazon