Study of T-cell Large Granular Lymphocyte Proliferations in Patients with Neutropenia and Arthritis
Author Information
Author(s): Monika Prochorec-Sobieszek, Grzegorz Rymkiewicz, Hanna Makuch-Łasica, Mirosław Majewski, Katarzyna Michalak, Robert Rupiński, Krzysztof Warzocha, Renata Maryniak
Primary Institution: Institute of Hematology and Transfusion Medicine, Warsaw, Poland
Hypothesis
The study aims to analyze the characteristics of T-cell large granular lymphocyte (T-LGL) lymphocytosis associated with inflammatory arthropathy.
Conclusion
Patients with rheumatoid arthritis and neutropenia represent a continuous spectrum of T-LGL proliferations, with monoclonal expansions being most frequently observed.
Supporting Evidence
- Neutropenia was observed in all 21 patients, with severe cases in 12.
- Nineteen patients were diagnosed with T-LGL leukemia.
- The study found a spectrum of T-LGL proliferations from reactive to monoclonal expansions.
Takeaway
This study looked at patients with a type of immune cell that can grow too much and cause problems, especially in those with arthritis and low white blood cell counts.
Methodology
Clinical, serological, histopathological, immunohistochemical, and flow cytometric evaluations were performed on blood and bone marrow samples from 21 patients.
Limitations
The study may not fully capture the complexity of T-LGL proliferations and their relationship with autoimmune diseases.
Participant Demographics
The median age of participants was 55.7 years, with a range from 28 to 84 years.
Digital Object Identifier (DOI)
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