Polyarthritis resembling juvenile rheumatoid arthritis in a girl with chronic granulomatous disease

Chronic granulomatous disease (CGD) is an uncommon disorder affecting neutrophil function, and is characterized by recurrent and severe pyogenic infections. Associated autoimmune disorders, in particular lupus-like disorders, are found in carriers of X-linked CGD and in patients with both the X-linked and the autosomal recessive (AR) forms of the disease. We describe a girl with the AR form of CGD and with rheumatoid factor-positive polyarthritis resembling juvenile rheumatoid arthritis. This association has been reported previously only in a single case report of a patient with probable CGD. The present report further substantiates the association between autoimmune phenomena and CGD.