<unk>  is a common genetic disorder featuring deficiency, either in quantity or function, of<unk> , an enzyme found in certain phagocytic immune cells, especially polymorphonuclear leukocytes.
It can appear similar to chronic granulomatous disease on some screening tests.
Myeloperoxidase deficiency
Leukocyte adhesion deficiency
Adenosine deaminase deficiency
Primary immunodeficiency
IgG deficiency
Natural killer cell deficiency
Immunoglobulin M deficiency
Selective immunoglobulin A deficiency