15 weeks GA !
What is / are the most likely diagnosis / diagnoses?
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Cystic hygroma.
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Encephalocele.
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Amniotic band syndrome.
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Holoprosencephaly.
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Hydranencephaly !
I think the skull bones are not well seen , supposed by 15 weeks to be well developed
Amniotic Band Syndrome (ABS) !
Thin aberrant bands of tissue attached to the fetus.
· Fetal deformities.
· Restriction of fetal movement secondary to entrapment by bands.
· Bands may be very difficult to visualize but characteristic fetal deformities in a non-embryonic distribution is highly suggestive !