Ultrasound diagnosis of acrania with major low–lying placenta and polyhydramnios; case report

Acrania is a rare foetal anomaly in which the calvaria absent, and meninges come into direct contact with amniotic fluid. most common acrania – exencephaly anencephaly spectrum, anincidence of 3.68 to 5.4 per 10,000 live births. We present case primigravida who presented for an ultrasound on account vaginal bleeding early cyesis. Transabdominal showed viable foetus at 13 weeks without calvaria, brain There was low-lying placenta extending from posterior anterior part lower uterine segment, completely covering internal cervical os (major low–lying placenta), placental cyst polyhydramnios (amniotic fluid index, AFI 17 cm). A diagnosis major made. Detailed required detect weeks. The help patient counselling maternal expectation. When occur same patient, both diagnoses must be promptly made concurrently, regardless gestational age waiting trophotropism migration first.