A member asked:

Can you detect placenta accreta on an 18 obstetrical week ultrasound? my midwife says you can't see pa, but it was my understanding that you could.

2 doctors weighed in across 2 answers

not commonly: Placenta accreta is usually associated with prior c-section, and difficult to diagnose before the third trimester, and may not be diagnosed until delivery.-, when passingthe placenta is delayed.

Answered 10/23/2013

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Dr. Nikolaos Zacharias answered

Specializes in Maternal-Fetal Medicine

You certainly can!: Expert eyes can discern the tell-tale signs of placenta accreta as early as the first trimester - in fact recent evidence suggests that is the best time to detect this potentially life-threatening complication of pregnancy. It is certainly possible to diagnose accreta at 18 weeks - I have done it repeatedly and confirmed it at delivery.

Answered 10/31/2013

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