NCIt definition : A congenital disorder characterized by chronic neutropenia with absolute neutrophil
count less than 500/uL and arrest of neutrophil maturation at the promyelocyte/myelocyte
level. It is inherited in autosomal recessive or autosomal dominant patterns. Sporadic
cases have also been reported. It is usually diagnosed in the first year of life.
Patients present with frequent and life-threatening infections.;