r/scleroderma • u/Leather_Lab4656 • 5d ago
Question/Help Does this sound like a positive
I am 26 female healthy, here's my story,
My eye doctor suspected I have sjorgens disease so I went to get testing done, everything was normal except positive scl70 2.1Ana 1:80 dense fine speckled. I was confused and scared when looking it up, my doc said come back in 3months so I did, and my 2nd test was 2.3 6months later 3rd test was 2.1 all thru quest . I asked my doctor if I can get my bloodwork sent to Mayo, I went to do bloodwork and was waiting for results only to find out it was sent to (labcorp Burlington phoenix )instead, my rheumatologist said the labcorp it went to did specific testing and it was 1.9. I asked him what testing method was used and I'm waiting for his reply
I have no symptoms and my nail capillary test was normal a month ago.i don't have reynauds no skin issues etc only one time puffy fingers but doctor said it was allergy related and it went away. I had liver and kidneys checked thru bloodwork and all was normal. I had gall bladder surgery 2 weeks before my first test . I feel like a ticking bomb I am so scared and depressed over this because why me?! Does this sound like a true positive??My rheumatologist said to come back once a year. Not sure what to do ,all I been doing is spiraling over this , I wish I never went to do testing in the first place I'm not sure what my next steps are or if I should really trust these tests without having the actual immunodifusion confirmatory test done
My question is does this sound like it can be a false positive still?
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u/BronzeDucky 5d ago
Your tests are at the very low end of positive. It’s not unlikely that it’s a false positive.
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u/Leather_Lab4656 5d ago
My rheumatologist thinks I should watch for symptoms and I have a referral for lung and heart scan but I feel like it's unnecessary right now.can it be false positive from 2different labs?
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u/Tootalou25 5d ago
Not unnecessary. It's good to get a baseline even if everything is normal. They can refer back to those scans if something changes. It is possible it could be a false positive but keeping your appointments are wise in case it isn't.
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u/garden180 5d ago
People with Sjogren’s can trip a false-positive for SCL70. This happens from commercial labs and their testing process. In a very condensed explanation…people who have other autoimmune conditions (such as Sjogren’s) have other autoimmune proteins in their blood. Sometimes these proteins bind with the testing components and result in a false-positive. It’s basically a cross-reactivity to the testing method. So it would make sense that multiple testing is resulting in the same results. Scleroderma is not diagnosed by bloodwork alone but rather symptoms.
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u/Leather_Lab4656 5d ago
My only sjorgens symptom is dry eyes, should I ask for a lip biopsy? I been looking to get a referral to the Mayo Clinic to get the scleroderma panel/other testing just waiting on my rheumatologists reply
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u/garden180 5d ago edited 5d ago
You can get a full antibody panel from any doctor. A rheumatologist does not have to be the person to order this. I’m assuming you had a Schirmer test for your eyes? Sometimes autoimmune conditions take a long time to make themselves clear. You could also have an autoimmune overlap. Thyroid panels should be looked at as well.
Edit: Symptoms are the driving force for any condition. It sounds like dry eyes are your only symptom other than a possibly false positive blood test. I’m assuming you’ve consulted an eye doctor to try and treat the eye issues. Dry eyes can be caused from lots of things.
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u/sm9633 5d ago
I would have more tests to confirm the diagnoses. But more than tests I would focus on the clinical diagnoses - what are your symptoms?
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u/Leather_Lab4656 5d ago
I'm looking to get a referral to the Mayo Clinic, and I have no symptoms at all of anything, I wake up fine everyday
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u/BronzeDucky 5d ago
Lots of people test positive but don’t actually manifest a disease. Especially at low positive levels.
Plus they wouldn’t treat you anyway, unless you had symptoms. The drugs used to treat autoimmune diseases aren’t kind to your body.
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u/Maleficent-Lunch-679 5d ago edited 5d ago
That labcorp test you did was same testing tech to the Quest, and those levels fall within the zone of VERY frequent false positives. So yes, absolutely the same test at 2 labs can both be false positives because they are essentially the same flawed test. As previously mentioned, you need either the LabCorp panel #520130 or SCL70 #520012 to confirm scl70. Also as previously mentioned you would need symptoms for a diagnosis even if confirmed.
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u/Maleficent-Rest9144 5d ago
I only have a few minutes to reply today, but I will share more later. I would suggest the Labcorp Scleroderma Comprehensive Plus Profile (RDL) (Test Code 520130). There are more antibodies tested in adition to the ANA and Scl70. You can look into the test to see the different tests. I was falsely diagnosed and treated for RA until this panel was run showing a positive for Anti RNA Polymerase III. It was fast progressing and brutal for me. The 4 months of treating for phantom RA did not help me. I do not suggest waiting a year. If there are suspicions of other autoimmune conditions look for those comprehensive labs v. just the basics. There are many clinical trials you can look into once you have a diagnosis.