A member asked:

Nasal bone hypoplastic, 3.4mm at 21week scan without any other aneuploidy markers, maternal age 28years, first pregnancy, nt at 13weeks 2.5mm?

4 doctors weighed in across 2 answers
Dr. Bruce J. Stringer answered

Specializes in Radiology

Needs Evaluation: Nt at 13 wks was borderline high. Nasal bone measurement at 21 wks is rather low since lower range of normal would be 4.4mm. In up to 15% of fetuses with nasal bone hypoplasia there were no other findings of aneuploidy. So, there is certainly a degree of risk here. You may want to consider amniocentesis to be better prepared if there is a problem and relieved if there is not. Good luck!

Answered 12/30/2012

5.4k views

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Dr. Brad Douglas answered

Specializes in Obstetrics and Gynecology

See below: I would highly suggest an amniocentesis too.

Answered 6/26/2019

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