Causes of Neutropenia - Differential Diagnosis
Neonate:
- Infection - by far the most common cause
- Maternal hypertension and/or drug treatment
- Maternal antibody production
- Constitutional disorders, eg, cyclic neutropenia, Kostmann syndrome, Chediak-Higashi syndrome
Infant/child:
- Infection-common
- Autoimmune neutropenia
- Neoplasms replacing the BM
- Idiosyncratic drug reactions
- Secondary autoimmune neutropenia in collagen vascular disorders
- Immunodeficiency disorders
- Myeloablative therapies
- Constitutional neutropenia disorders-rare
- Megaloblastic anemia-rare
- Copper deficiency-rare
Adult:
- Idiosyncratic drug reactions-most common cause in ambulatory patients
- Infections-common
- Neoplasms replacing the BM-common
- Myeloablative therapies-common
- Secondary autoimmune neutropenia in collagen vascular disorders
- Autoimmune disorders including white blood cell aplasia
DOI: 10.1111/ijlh.13210
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