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A case of a 22-month-old boy with necrotizing pneumonia presenting with leukaemoid reaction misdiagnosed as leukaemia: A case report and review of the literature

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dc.creator Jumanne, Shakilu
dc.creator Nyundo, Azan
dc.date 2020-03-20T08:22:17Z
dc.date 2020-03-20T08:22:17Z
dc.date 2019
dc.date.accessioned 2022-10-20T14:01:34Z
dc.date.available 2022-10-20T14:01:34Z
dc.identifier Jumanne, S., & Nyundo, A. (2019). A case of a 22-month-old boy with necrotizing pneumonia presenting with leukaemoid reaction misdiagnosed as leukaemia: a case report and review of the literature. Malawi Medical Journal, 31(3), 223-226.
dc.identifier http://dx.doi.org/10.4314/mmj.v31i3.10
dc.identifier http://hdl.handle.net/20.500.12661/2255
dc.identifier.uri http://hdl.handle.net/20.500.12661/2255
dc.description Full Text Article. Also available at: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6895389/
dc.description Background: Necrotizing pneumonia and hyperleukocytosis, to the extent of that seen in leukaemia, is a rarely reported presentation. The commonest trigger of such a presentation is an inflammatory process caused by an overwhelming infection which leads to bone marrow irritation. However, the misdiagnosis of this clinical entity as leukaemia should be avoided at all costs so as to avoid the anxiety associated with a diagnosis of cancer, both to the patients and their families. Case presentation: Here, we report the case of a 22-month-old boy who was referred to our Pediatric Oncology Unit (POU). Owing to a high total leukocyte count (TLC) of 98,000 cells/μl, there was a strong suspicion of leukaemia. The boy had been reviewed at another hospital where he presented with fever and cough refractory to the commencement of tuberculosis medications as a result of chest radiography findings. Laboratory investigations performed on admission in the POU were negative for leukaemia and other myeloproliferative disorders. A chest computer tomography (CT) scan was performed to delineate opacification in the right middle lobe. This revealed multiple necrotic and emphysematous foci in line with a diagnosis of necrotizing pneumonia. Subsequently, the patient responded well to a course of piperacillin- tazobactam. The TLC normalized and the cough and fever resolved over a period of 2 weeks. Conclusion: Here, we describe a particularly rare case of leukaemoid reaction with a massive leukocyte count. Such patients can be easily misdiagnosed as having leukaemia or other myeloproliferative disorders, especially in settings with limited diagnostic availability. Such misdiagnosis can cause undue stress on the patient and their families. Thus, it is important that patients presenting with these symptoms should undergo a thorough review of history, physical examination and a structured workup.
dc.language en
dc.publisher University of Malawi
dc.subject Leukaemoid reaction
dc.subject Necrotizing pneumonia
dc.subject Leukaemia
dc.subject Leukocytosis
dc.subject Patients
dc.subject Myeloproliferative disorders
dc.subject Physical examination
dc.title A case of a 22-month-old boy with necrotizing pneumonia presenting with leukaemoid reaction misdiagnosed as leukaemia: A case report and review of the literature
dc.type Article


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