The British Journal of Rheumatology, Vol 36, 289-291, Copyright © 1997 by British Society for Rheumatology
HE Foster, PN Malleson, RE Petty and DA Cabral
We describe a young girl who presented with musculoskeletal symptoms and
who was found to have high titres of antinuclear antibody with anti- RNP
antibody. She was initially suspected of having mixed connective tissue
disease, but ultimately was found to have metastatic undifferentiated
carcinoma with an unknown primary site. This is a very uncommon malignancy
of childhood and an association with anti-RNP antibody has, to our
knowledge, not been described. The clinical significance of this finding is
discussed.
ORIGINAL PAPERS
Anti-RNP antibody in a child with undifferentiated carcinoma and no evidence of mixed connective tissue disease
Department of Rheumatology, Freeman Hospital, Newcastle upon, Tyne.
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