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A member asked:

Can you please discuss the relationship among sle, mctd, anas, anti-rnp, myalgia, and myositis? how common is it to find these concurrent in a person?

A doctor has provided 1 answer
Dr. John Chiu answered

Very common: These are all autoimmune diseases due to loss of regulation on the immune system and thus they often occur in combination or individually.

Answered 2/14/2014

4.5k views

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Muscle pain, butterfly rash, fatigue. Positive ANA and elevated rnp. Is this likely lupus?

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Tested positive for ANA and now further tests show i'm also positive for ENA antibodies - sm b and rnc. Is it more likely to be mctd or sle? Thanks

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What could a negative ANA and positive RNP antibodies mean? I have a history of chronic rheumatological symptoms, but my dr is not convinced its MCTD.

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I have a weakly positive ANA which show rnp antibodies...I have an extremely slow motility..Swollen fingers..Red palms..Could this be mctd?

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People also searched for:

I have had red splotches on my eyelids and under my eyes for 6-8 months. I have had a full Myositis blood panel and CBC, c1, c4 all negative but my RNP is 1.7. With only a positive RNP and not ANA rule out mctd ?
Two years ago I had a postive ana. Recently I had a comprehensive ANA panel done and by rnp antibodies were 4.4. Could this be sle or mctd?
I received blood test results with positive RNP and Ana not detected. Is it possible to not have SLE or mctd, or it's definite due to positive RNP?
Positive ana positive rnp low positive ccp positive dsdna can you tell me if this means lupus or mctd?
Positiveana elevated rnp, butterfly rash, muscle pain, fatigue. Could this be a false positive or likely mctd or lupus?

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