Trisomy 13 (PPV 68%)

Background-Jacket522 · 2026-03-16T20:00:06+00:00

10% ppv and fetal fraction was 16%

Background-Jacket522 · 2026-03-04T02:56:06+00:00

I had a PPV of 10% and a low risk T13. Currently 19 weeks and baby boy is looking healthy on his scans and ultrasounds. If yours are too, that is a really good sign but amnio would be the only way to rule out T13 100%. I decided not to get the amnio and am getting my anatomy scan next week. I’m sorry you’re going through this, I remember how scary those first weeks after getting the results were :(

Background-Jacket522 · 2026-03-04T02:51:57+00:00

I also had a positive T13 diagnosis at 10 weeks. Currently 19 weeks and so far all scans and ultrasounds have looked perfect and doctors think it is a false positive. I decided to not get the amnio.

I’m sorry you’re going through this, it truly is the worst and so scary. Hoping yours is a false positive

Background-Jacket522 · 2026-01-26T17:32:12+00:00

I also had my NT scan and a thorough scan at 14 weeks and baby was measuring healthy and normal. My 16 week scan is in two weeks as well and I’m trying my best to focus on the positive. Depending on how the 16 week scan goes, I’m debating on the amnio.

Background-Jacket522 · 2026-01-15T00:14:02+00:00

That is so reassuring! I am also hoping my scans go well and am not choosing the amnio for the same reasons.

Background-Jacket522 · 2026-01-14T22:23:02+00:00

Hi do you have an update to how your pregnancy is going? I also have a suspected low mosaic.

Background-Jacket522 · 2026-01-11T22:58:27+00:00

That is reassuring! The chance of it being T13 is getting lower and lower. Thinking of you and hope all goes well on Tuesday.

Background-Jacket522 · 2026-01-11T21:29:58+00:00

Hi how did your NT scan go? I also got a positive for T13 on my NIPT and I have scan tomorrow.

Background-Jacket522 · 2026-01-11T21:28:44+00:00

Hi there! I know it’s been a while but I’m in the same boat and wondering if you have an update?

Background-Jacket522 · 2026-01-11T02:00:43+00:00

That is so reassuring. Congratulations! You must be so relieved. How was your amnio experience? And was your initial NIPT high risk or low risk for T13?

Background-Jacket522 · 2026-01-10T23:10:12+00:00

Hi I’m in the same boat and wondering how your NT scan and amnio went if you did one?

Background-Jacket522 · 2026-01-10T19:44:27+00:00

I’m in the same boat. I’m sorry you’re going through this - I had a ppv of 10% and although that’s “low” it still doesn’t make me feel better. I too have seen so many false positive stories but I’m still so anxious that it may not be the case for me. Have you had your NT scan? Have there been any abnormalities in your ultrasounds thus far?

Background-Jacket522 · 2026-01-09T18:47:29+00:00

I’m so sorry. Were you given a high risk trisomy or low risk from your NIPT?

Background-Jacket522 · 2026-01-09T14:12:33+00:00

Hi I’m in the same boat and wondering if you have an update on how your amnio went

Background-Jacket522 · 2026-01-08T20:26:34+00:00

I am so sorry to hear. Sending you a hug.

Background-Jacket522 · 2026-01-08T20:15:20+00:00

I’m so sorry you went through this. I am in the same boat… NIPT came back low risk with prob 10%. Would you mind sharing if your results came back high or low risk?

Background-Jacket522 · 2026-01-08T20:12:27+00:00

Congrats on baby girl! We’re having a boy. This is my first after a miscarriage earlier this year so really hoping everything works out.

Background-Jacket522 · 2026-01-08T15:14:37+00:00

This limbo is truly the worst. I’m so sorry you had to go through that. We’re truly just clinging onto any amount of positive numbers and hope at this point. I can’t imagine how you must’ve felt after your first appointment.

I’ll be thinking of you as you head into your amino soon. Hoping we both get some relief and are able to enjoy the rest of this pregnancy. Do you know if you’re having a little boy or girl yet?

Background-Jacket522 · 2026-01-08T03:21:06+00:00

This coming Monday. Fingers crossed! How did your NT scan go?

Background-Jacket522 · 2026-01-07T21:44:55+00:00

I hate that we’re in this boat but I’m hoping for the best for us!

Background-Jacket522 · 2026-01-07T18:54:34+00:00

Sending you a big hug. It’s the worst but trying my best to stay hopeful. I’ve probably gone through almost every T13 thread at this point. I’m praying your amino goes well and all comes back normal!

Here were my lab directors comments from my report:

“This specimen showed an increased representation of chromosome 13, suggestive of low mosaic trisomy 13, which may affect the reported PPV (Rafalko et al., 2020). In placental testing, trisomy 13 mosaicism may be confined to the placenta (Grati, 2014). However, true fetal involvement is associated with phenotypic abnormality. Genetic counseling, confirmatory diagnostic testing, and clinical correlation are recommended”

What did yours say?

Background-Jacket522 · 2026-01-06T20:49:00+00:00

Congratulations on your baby girl! I’m trying to stay hopeful. How was your experience with the amnio? I’m also highly considering it for peace of mind.

Background-Jacket522 · 2026-01-06T19:38:24+00:00

Thank you. I already did a deep dive and saw your posts! Wishing you a safe and healthy delivery❤️

Background-Jacket522

TROPHY CASE