<unk>  can develop in any form of neutropenia, but is most generally recognized as a complication of chemotherapy when it is myelosuppressive (suppresses the bone marrow from producing blood cells).
Febrile neutropenia
Cyclic neutropenia
Agranulocytosis
Granulocytosis
Leukopenia
Cytopenia
Lycopenemia
Pancytopenia