Mixed connective tissue disease is an autoimmune multisystemic disease which is presented rarely in the childhood period. It is characterised by overlapping clinical features similar
to those of SLE, Scleroderma and Polymyositis/Dermatomyositis and very high titers of circulating antinuclear antibody to a nuclear ribonucleoprotein (RNP) antigen. Hence it can
be sometimes misdiagnosed as JRA, SLE or Scleroderma. This case is reported both becouse of this property and rare presentation in the childhood period.
Keywords: Mixed connective tissue disease
Anahtar Kelimeler: Mikst konnektif doku hastalığı