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Updated: Aug 29, 2025
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Identification and Characterization of Immunogenic RNA Species in HDM Allergens that Modulate Eosinophilic Lung Inflammation
Published on: May 30, 2020
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Hematological hypereosinophilia
Ines Ghariani1,2, Oumaima Mahmoud1,2, Saloua Hamzaoui3,4
1Service laboratoire de biologie clinique (unité d’hématologie), CHU Mongi Slim de la Marsa, Tunis, Tunisie
Annales De Biologie Clinique
|September 13, 2022
Summary
Hematological hypereosinophilia, a rare disorder, presents diverse clinical and biological features. Molecular diagnostics and targeted therapies like imatinib are crucial for managing clonal forms.
Area of Science:
- Hematology
- Oncology
Background:
- Hematological disorders are a significant cause of hypereosinophilia.
- Hypereosinophilia requires comprehensive characterization due to its complex nature.
Purpose of the Study:
- To elucidate the epidemiological, clinical, biological, and therapeutic profiles of hematological hypereosinophilia.
- To highlight the role of molecular biology in diagnosing and managing this condition.
Main Methods:
- Retrospective study of 14 patients diagnosed with hematological hypereosinophilia between March 2017 and March 2021.
- Analysis of clinical manifestations, blood count abnormalities, and molecular findings (RT-PCR for FIP1L1-PDGFRA fusion gene).
Main Results:
- The study included 14 patients (9 female, 5 male) with a median age of 55 years.
- Clonal etiology was predominant, presenting with organ damage, hepato-splenomegaly, and lymphadenopathy.
- FIP1L1-PDGFRA fusion gene detected in two patients; imatinib was the primary treatment for clonal cases.
Conclusions:
- Hematological hypereosinophilia exhibits significant heterogeneity.
- Molecular biology plays a vital role in the diagnosis and treatment strategy for hypereosinophilia.
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