Journals / Marmara Medical Journal / 2026 / Volume: 39 Issue: 2

Case-based comparison of flow cytometry and immunofixation electrophoresis in IgD triclonal gammopathy multiple myeloma: a rare case report

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Publication Date
2026-05-21
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Additional research is required to investigate prognostic markers and enhance treatment strategies for uncommon MM subtypes.

📌 3 Key Takeaways

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Objective & Hypothesis:Multiple myeloma (MM) is a hematological malignancy marked by the aberrant proliferation of plasma cells, resulting in hypercalcemia, renal dysfunction, anemia, and bone lesions.
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Key Findings & Data:This case study describes a 74-year-old female patient with acute kidney injury, diabetes mellitus, and an L3-L4 bone fracture, who exhibited elevated creatinine levels (7.01 mg/dL) and was later diagnosed with stage III MM.
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Conclusion & Impact:Additional research is required to investigate prognostic markers and enhance treatment strategies for uncommon MM subtypes.
🔬Design:Case Report
📍Scope:Comprehensive Sample
⚙️Variables:Hematology · Electrophoresis · Flow Cytometry

Abstract

Multiple myeloma (MM) is a hematological malignancy marked by the aberrant proliferation of plasma cells, resulting in hypercalcemia, renal dysfunction, anemia, and bone lesions. This case study describes a 74-year-old female patient with acute kidney injury, diabetes mellitus, and an L3-L4 bone fracture, who exhibited elevated creatinine levels (7.01 mg/dL) and was later diagnosed with stage III MM. Diagnostic evaluations included serum free light chain ratio (FLCR = 209), serum protein electrophoresis (SPEP), serum immunotyping and serum immunofixation electrophoresis (IT and SIFE; LC1-Kappa, HC-IgD-LC2-Kappa, and LC3-Kappa), multiparametric flow cytometry (MFC), and fluorescent in situ hybridization (FISH). The patient completed six cycles of VCd (bortezomib, cyclophosphamide, dexamethasone) therapy, attaining a very good partial response (VGPR) and has subsequently been undergoing maintenance therapy with ixazomib for a period of two years. This report highlights the difficulties in diagnosing and managing a rare subtype of MM and emphasizes the importance of FLC, SPEP, IT, SIFE, and MFC in evaluating prognosis and treatment efficacy. Although the patient presented with several poor prognostic features of MM, the observed response indicates a possible treatment efficacy. Additional research is required to investigate prognostic markers and enhance treatment strategies for uncommon MM subtypes.

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Cite This Article

Türkeş, G. F., Devrim, E., Dalva, K., Seval, G. C., *, G. F. T. (2026). Case-based comparison of flow cytometry and immunofixation electrophoresis in IgD triclonal gammopathy multiple myeloma: a rare case report. Marmara Medical Journal, Volume: 39 Issue: 2. https://doi.org/10.5472/marumj.1952099

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