Rheumatology Advance Access published online on October 23, 2009
Rheumatology, doi:10.1093/rheumatology/kep315
© The Author 2009. Published by Oxford University Press on behalf of the British Society for Rheumatology. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org
A case of early-onset sarcoidosis with a six-base deletion in the NOD2 gene
1Department of Pediatrics, Kyoto University Graduate School of Medicine, Kyoto, 2Department of Dermatology, Hitachi General Hospital, Hitachi and 3Department of Pediatrics, Kobe City Medical Center General Hospital, Kobe, Japan.
Correspondence to:
Ryuta Nishikomori, Department of Pediatrics, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan. E-mail: rnishiko@kuhp.kyoto-u.ac.jp
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SIR, We present the first case of early-onset sarcoidosis (EOS, MIM no. 609464 [OMIM] ) with a six-base deletion in the NOD2 gene, resulting in the replacement of one amino acid and the deletion of two additional amino acids. All previous mutations reported for EOS and Blau syndrome (BS, MIM no. 186580 [OMIM] ) were single-base substitutions that resulted in the replacement of a single amino acid [1–3].
The patient was a Japanese male born after an uncomplicated pregnancy and delivery. His family had no symptoms of skin lesions, arthritis or