Chronic Neutrophilic Leukemia: A Case Report of Diagnosis in a 60-year-old Male

Chronic neutrophilic leukemia (CNL) is an uncommon myeloproliferative neoplasm (MPN), characterized by determined neutrophilia, bone marrow hypercellularity, and hepatosplenomegaly. The BCR-ABL1 fusion gene is not obtained. A 60-year-old male complained of a black stool. The patient also complained...

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Bibliographic Details
Main Authors: Marisa Setiawan, Yetti Hernaningsih, Narazah Mohd Yusoff
Format: Article
Language:English
Published: Wolters Kluwer – Medknow Publications 2025-01-01
Series:Biomolecular and Health Science Journal
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Online Access:https://journals.lww.com/10.4103/bhsj.bhsj_16_24
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Summary:Chronic neutrophilic leukemia (CNL) is an uncommon myeloproliferative neoplasm (MPN), characterized by determined neutrophilia, bone marrow hypercellularity, and hepatosplenomegaly. The BCR-ABL1 fusion gene is not obtained. A 60-year-old male complained of a black stool. The patient also complained of nausea, black vomiting, weakness, and joint pain. Anemic conjunctiva and splenomegaly were obtained. Laboratory tests showed hemoglobin 6.4 g/dL, leukocytes 46730/μL, and neutrophils 93.8%. The peripheral blood smear result was MPN: CNL. Bone marrow aspiration result matched CNL. BCR-ABL results were negative. Laboratory results 3 months later showed leukocytes 32640/μL and neutrophils 91.6%. CNL diagnosis criteria based on the 2017 World Health Organization include additional criteria if CSF3R mutation is absent: persistent neutrophilia (≥3 months), splenomegaly, and no reactive neutrophilia or plasma cell neoplasm. Proper diagnosis could prevent this disease from transforming into acute leukemia.
ISSN:2620-8636