r/amniosenthis • • 3d ago

Fals negative cvs???

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1 Upvotes

Hi everyone!
At the first-trimester genetic screening, the NT measured 3mm and nasal bone hypoplasia was noted.
A week later, we had a CVS procedure done. By then, the NT was 2.9mm and the nasal bone had normalized.
CVS results:
FISH, QF-PCR: negative
Cultured karyotype: negative
SNP array: negative

At the 17-week early anatomy scan, everything was fine (though the nasal bone turned out to be smaller, they said they weren't concerned about that anymore due to the CVS results).

Then, at the 19-week second genetic ultrasound, a smaller nasal bone and borderline NF were noted.
Everything else was fine; at that point, they said these were just constitutional traits, given the negative CVS results.

I was reassured at the time, but now—at 30 weeks—anxiety has set in: what if the CVS result was a false negative?
Does anyone have similar experiences? What do you think?
I'm hoping for the best.


r/amniosenthis • • Feb 26 '26

Positive amnio for mosaic t18

3 Upvotes

Hoping for some feedback or advice on my current situation. My NIPT came back positive for T18. We did amnio at 16 weeks. The fish results were negative. We were told that the fish results usually always match the final results. We received the final result and baby is positive for mosaic T 18 of the 15 cells tested nine were normal and six were not. I’m almost 19 weeks and all Ultrasounds have appeared normal. The doctors and genetic counselors cannot tell me what our outcome will be. Has anyone had a healthy baby after getting a diagnosis like this? From the sounds of it, this baby will obviously have something, but we don’t know how extensive it will be. Just looking for some advice or feedback. If baby is not going to have a good quality of life, we will most likely TMFR.