NCIt definition : A rare genetic disorder with a predominantly X-linked recessive pattern of inheritance
resulting in impaired phagocytic clearance of bacteria and fungi. It is caused by
a defect in the phagocytic NADPH oxidase (phox) complex. The phagocytes can engulf
pathogens but are unable to produce the microbicidal precursors needed to destroy
them. Clinical signs of severe disease present in childhood with milder forms later
in life. They include recurrent infection especially pneumonia, cervical lymphadenopathy
and hepatosplenomegaly. The clinical course includes the appearance of granulomata
in the skin and gastrointestinal or genitourinary tracts. The clinical prognosis is
dependent on effectively treating and preventing infection.;