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Is Absences Of Fetal Nasal Bone A Cause For Concern?

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Posted on Thu, 30 Jun 2016
Question: Hi im xxx .i was 23years old. my height is 5.2weight is 55kgs.I am 20 weeks pregnant This is my first pragency after 1year of my marriage.I had a TIFFA scan. About TIFFA, doctor said,babies fetal nasal not seen.Im little bit worried about my baby can u pls tell me the what r the chance of normal delivery and baby future. pls help me.
doctor
Answered by Dr. Sameer Kumar (46 minutes later)
Brief Answer:
repeat the scan...to reconfirm..explained

Detailed Answer:
Hello,
Thanks for the query to hcm,
Absent foetal nasal bone is not a good sign and presents with high chances of downs syndrome, but this is actually very rare. I am sure that a repeat scan shall be required as he may have missed it in a particular view. If still not seen then one has to get a amniocentesis done for karyotyping to rule out trisomy 21.
Regards
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Sameer Kumar (37 hours later)
Hi sir, today we were going one more tiffa scan. Doctor said, fetal nasal bone slightly visible. Now my question is, one month ago(21weeks) it's not visible. Present(26weeks) it's visible. Further it's grownup? Or any thing wrong in previous tiffa scan. Thanking you.
doctor
Answered by Dr. Sameer Kumar (49 minutes later)
Brief Answer:
it may be deficient nasal bone as still its not evidently completely

Detailed Answer:
Hello,
The first scan as i said was probably not done correctly, however if even on second scan if there has been deficient nasal bone then one does have to consider the possibility of downs syndrome. Though it is one of the soft marker and not 100 per cent reliable.
If the baby's overall growth is adequate then there is nothing which needs to be done.
Regards
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Sameer Kumar (8 minutes later)
Sir, the remaining organs are in well growth. As u said, We hope, no need to worried about this. Thanking you.
doctor
Answered by Dr. Sameer Kumar (12 minutes later)
Brief Answer:
Its fine if overall growth is fine

Detailed Answer:
Hello,
If the overall growth of the child is fine then there is no apparent need to be worried. I would have been happier if you would have uploaded the scanned ultrasound report and images for my review and then i would have bene a better position to comment.
Regards
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
Answered by
Dr.
Dr. Sameer Kumar

OB and GYN Specialist

Practicing since :2002

Answered : 1782 Questions

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Is Absences Of Fetal Nasal Bone A Cause For Concern?

Brief Answer: repeat the scan...to reconfirm..explained Detailed Answer: Hello, Thanks for the query to hcm, Absent foetal nasal bone is not a good sign and presents with high chances of downs syndrome, but this is actually very rare. I am sure that a repeat scan shall be required as he may have missed it in a particular view. If still not seen then one has to get a amniocentesis done for karyotyping to rule out trisomy 21. Regards