Neutropenia Differential Diagnoses
- Author: John E Godwin, MD, MS; Chief Editor: Emmanuel C Besa, MD more...
Diagnostic Considerations
Other conditions to be considered include the following:
- Large granular lymphocyte leukemia
- Autoimmune diseases
- Chronic myelomonocytic leukemia
- Congenital neutropenia
- Cyclic neutropenia
- Drug-induced neutropenia
- Large granular lymphocytic leukemia
- Pseudoneutropenia
Obtain a detailed history in patients with neutropenia or agranulocytosis, with particular emphasis on medication use. The inquiry must extend back in time to include discontinued medications. Over-the-counter drugs must be included in the inquiry, because patients often do not consider these agents to be medications. Any possible occupational or accidental exposure to toxic chemicals or physical agents must be excluded. Agranulocytosis should be differentiated from other syndromes of bone-marrow failure, including pancytopenia and aplastic anemia. Leukemia should be excluded.
Differential Diagnoses
- Acute Lymphoblastic Leukemia
- Acute Myelogenous Leukemia
- Aplastic Anemia
- Bacterial Sepsis
- Cytomegalovirus
- Folic Acid Deficiency
- Granulocytopenia
- Hepatitis, Viral
- HIV, Early Recognition and Rapid Testing
- Hodgkin Disease
- Infectious Mononucleosis
- Lymphoma, Non-Hodgkin
- Multiple Myeloma
- Systemic Lupus Erythematosus
- Wegener Granulomatosis
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| Syndrome | Inheritance | Gene | Clinical Features |
| Cyclic neutropenia | Autosomal dominant | ELA2 | Alternate 21-day cycling of neutrophils and monocytes |
| Kostmann syndrome | Autosomal recessive | Unknown | Stable neutropenia, no MDS or AML |
| Severe congenital neutropenia | Autosomal dominant | ELA2 (35-84%) | Stable neutropenia, MDS or AML |
| Autosomal dominant | GFI1 | Stable neutropenia, circulating myeloid progenitors, lymphopenia | |
| Sex linked | Wasp | Neutropenic variant of Wiskott-Aldrich syndrome | |
| Autosomal dominant | G-CSFR | G-CSF–refractory neutropenia, no AML or MDS | |
| Hermansky-Pudlak syndrome type 2 | Autosomal recessive | AP3B1 | Severe congenital neutropenia, platelet dense-body defect, oculocutaneous albinism |
| Chediak-Higashi syndrome | Autosomal recessive | LYST | Neutropenia, oculocutaneous albinism, giant lysosomes, impaired platelet function |
| Barth syndrome | Sex linked | TAZ | Neutropenia, often cyclic; cardiomyopathy, methylglutaconic aciduria |
| Cohen syndrome | Autosomal recessive | COH1 | Neutropenia, mental retardation, dysmorphism |
| Source: Modified from Berliner et al, 2004.[13] AML = acute myeloid leukemia; G-CSF = granulocyte colony-stimulating factor; MDS = myelodysplastic syndrome. | |||

