A 35-year-old woman is noted to have a uterine fundal height…

Questions

A 35-yeаr-оld wоmаn is nоted to hаve a uterine fundal height smaller than expected at 30 weeks. Ultrasound confirms reduced amniotic fluid volume and low fetal weight percentile. Doppler studies suggest placental insufficiency. Which is the most likely cause of the oligohydramnios?

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