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Kim JA, Shin WY, Kim J, Bang HI, Yoon SY, Park R. A rare case of primary plasma cell leukemia exhibiting the small-cell variant of plasma cells. Blood Res 2022; 57:161-164. [PMID: 35620908 PMCID: PMC9242829 DOI: 10.5045/br.2022.2022059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/12/2022] [Accepted: 04/18/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Jung-Ah Kim
- Department of Laboratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Woo Yong Shin
- Department of Laboratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Jieun Kim
- Department of Laboratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Hae In Bang
- Department of Laboratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Seug Yun Yoon
- Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
| | - Rojin Park
- Department of Laboratory Medicine, Soonchunhyang University Seoul Hospital, Seoul, Korea
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2
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Bezdekova R, Jelinek T, Kralova R, Stork M, Polackova P, Vsianska P, Brozova L, Jarkovsky J, Almasi M, Boichuk I, Knechtova Z, Penka M, Pour L, Sevcikova S, Hajek R, Rihova L. Necessity of flow cytometry assessment of circulating plasma cells and its connection with clinical characteristics of primary and secondary plasma cell leukaemia. Br J Haematol 2021; 195:95-107. [PMID: 34500493 PMCID: PMC9292932 DOI: 10.1111/bjh.17713] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 06/30/2021] [Indexed: 01/23/2023]
Abstract
Plasma cell leukaemia (PCL) is a rare and very aggressive plasma cell disorder. Preventing a dismal outcome of PCL requires early diagnosis with appropriate analytical tools. Therefore, the investigation of 33 patients with primary and secondary PCL was done when the quantity of circulating plasma cells (PCs) using flow cytometry (FC) and morphology assessment was evaluated. The phenotypic profile of the PCs was also analysed to determine if there is an association with clinical outcomes and to evaluate the prognostic value of analysed markers. Our results revealed that FC is an excellent method for identifying circulating PCs as a significantly higher number was identified by FC than by morphology (26·7% vs. 13·5%, P = 0·02). None of secondary PCL cases expressed CD19 or CD20. A low level of expression with similar positivity of CD27, CD28, CD81 and CD117 was found in both PCL groups. A decrease of CD44 expression was detected only in secondary PCL. Expression of CD56 was present in more than half of PCL cases as well as cytoplasmic nestin. A decreased level of platelets, Eastern Cooperative Oncology Group score of 2-3 and lack of CD20+ PC were associated with a higher risk of death. FC could be incorporated in PCL diagnostics not only to determine the number of circulating PCs, but also to assess their phenotype profile and this information should be useful in patients' diagnosis and possible prognosis.
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Affiliation(s)
- Renata Bezdekova
- Department of Clinical Hematology, University Hospital Brno, Brno, Czech Republic.,Babak Myeloma Group, Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Tomas Jelinek
- Department of Hematooncology, University Hospital Ostrava, Ostrava, Czech Republic
| | - Romana Kralova
- Department of Clinical Hematology, University Hospital Brno, Brno, Czech Republic.,Babak Myeloma Group, Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Martin Stork
- Department of Internal Medicine - Hematology and Oncology, University Hospital Brno, Brno, Czech Republic
| | - Petra Polackova
- Department of Clinical Hematology, University Hospital Brno, Brno, Czech Republic
| | - Pavla Vsianska
- Department of Clinical Hematology, University Hospital Brno, Brno, Czech Republic.,Babak Myeloma Group, Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Lucie Brozova
- Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Jiri Jarkovsky
- Institute of Biostatistics and Analyses, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Martina Almasi
- Department of Clinical Hematology, University Hospital Brno, Brno, Czech Republic.,Babak Myeloma Group, Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Ivanna Boichuk
- Department of Internal Medicine - Hematology and Oncology, University Hospital Brno, Brno, Czech Republic
| | - Zdenka Knechtova
- Department of Internal Medicine - Hematology and Oncology, University Hospital Brno, Brno, Czech Republic
| | - Miroslav Penka
- Department of Clinical Hematology, University Hospital Brno, Brno, Czech Republic
| | - Ludek Pour
- Department of Internal Medicine - Hematology and Oncology, University Hospital Brno, Brno, Czech Republic
| | - Sabina Sevcikova
- Department of Clinical Hematology, University Hospital Brno, Brno, Czech Republic.,Babak Myeloma Group, Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Roman Hajek
- Department of Hematooncology, University Hospital Ostrava, Ostrava, Czech Republic
| | - Lucie Rihova
- Department of Clinical Hematology, University Hospital Brno, Brno, Czech Republic.,Babak Myeloma Group, Department of Pathophysiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
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3
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Nesr G, Maniusyte R, Dunlop A, Kagdi H. Plasma cell leukaemia with "lymphoid-like morphology" in peripheral blood. Int J Lab Hematol 2021; 44:10-12. [PMID: 33844877 DOI: 10.1111/ijlh.13535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/15/2021] [Accepted: 03/23/2021] [Indexed: 11/28/2022]
Affiliation(s)
- George Nesr
- Department of Haematology, London North West University Healthcare NHS Trust, London, UK
| | - Ruta Maniusyte
- Department of Haematology, London North West University Healthcare NHS Trust, London, UK
| | - Alan Dunlop
- Department of Haemato-Oncology, Royal Marsden Hospital, London, UK
| | - Huseini Kagdi
- Department of Haematology, London North West University Healthcare NHS Trust, London, UK
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4
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Evans LA, Jevremovic D, Nandakumar B, Dispenzieri A, Buadi FK, Dingli D, Lacy MQ, Hayman SR, Kapoor P, Leung N, Fonder A, Hobbs M, Hwa YL, Muchtar E, Warsame R, Kourelis TV, Go R, Russell S, Lust JA, Lin Y, Siddiqui M, Kyle RA, Gertz MA, Rajkumar SV, Kumar SK, Gonsalves WI. Utilizing multiparametric flow cytometry in the diagnosis of patients with primary plasma cell leukemia. Am J Hematol 2020; 95:637-642. [PMID: 32129510 DOI: 10.1002/ajh.25773] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/26/2020] [Accepted: 02/27/2020] [Indexed: 12/22/2022]
Abstract
The diagnosis of primary plasma cell leukemia (pPCL) has been made by quantifying circulating plasma cells (cPCs) morphologically on a peripheral blood (PB) smear. However, this technique is not sufficiently sensitive. Multiparametric flow cytometry (MFC) provides a readily available and highly sensitive method to identify and quantify cPCs that could complement PB smear assessment. However, an optimal quantitative cutoff for cPCs by MFC to identify pPCL has not been established. Thus, a total of 591 patients newly diagnosed multiple myeloma (NDMM) patients who had their PB samples evaluated morphologically by PB smear, and immunophenotypically by MFC prior to beginning therapy were evaluated. The presence of ≥200 cPCs/μL by MFC (N = 25 or 5% of the total population) was chosen to identify patients with ≥5% cPCs by PB smear with a specificity of 99% and a sensitivity of 77%. For patients with ≥200 cPCs/μL by MFC compared to the remainder of the cohort, the median Time to next therapy (TTNT) was 18 vs 30 months and the median OS was 38 vs 70 months respectively. Thus, MFC assessment of PB can be utilized in conjunction with the morphological assessment of a PB smear to aid in improving the identification of pPCL among NDMM patients.
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Affiliation(s)
- Laura A. Evans
- Division of HematologyMayo Clinic Rochester Minnesota USA
- Department of BiologyJohns Hopkins University Baltimore Maryland USA
| | - Dragan Jevremovic
- Department of Laboratory Medicine and PathologyMayo Clinic Rochester Minnesota USA
| | | | | | | | - David Dingli
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Martha Q. Lacy
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | | | | | - Nelson Leung
- Division of HematologyMayo Clinic Rochester Minnesota USA
- Department of Nephrology and HypertensionMayo Clinic Rochester Minnesota USA
| | - Amie Fonder
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Miriam Hobbs
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Yi Lisa Hwa
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Eli Muchtar
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Rahma Warsame
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | | | - Ronald Go
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | | | - John A. Lust
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Yi Lin
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | | | - Robert A. Kyle
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | - Morie A. Gertz
- Division of HematologyMayo Clinic Rochester Minnesota USA
| | | | - Shaji K. Kumar
- Division of HematologyMayo Clinic Rochester Minnesota USA
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Wang H, Lin P. Flow Cytometric Immunophenotypic Analysis in the Diagnosis and Prognostication of Plasma Cell Neoplasms. CYTOMETRY PART B-CLINICAL CYTOMETRY 2019; 96:338-350. [DOI: 10.1002/cyto.b.21844] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 08/23/2019] [Accepted: 08/26/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Hao‐Wei Wang
- Flow Cytometry and Hematopathology Section, Laboratory of PathologyCCR, NCI, NIH Bethesda Maryland 20892
| | - Pei Lin
- Department of HematopathologyThe University of Texas MD Anderson Cancer Center Houston Texas 77030
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Singh S, Rath A, Yadav S. Primary Plasma Cell Leukaemia: Case report and review of the literature. Sultan Qaboos Univ Med J 2019; 18:e397-e401. [PMID: 30607287 DOI: 10.18295/squmj.2018.18.03.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2018] [Revised: 04/04/2018] [Accepted: 05/24/2018] [Indexed: 11/16/2022] Open
Abstract
Plasma cell leukaemia (PCL) is one of the most aggressive and rarest forms of plasma cell dyscrasia. However, the diagnostic criteria for this condition have not yet been revised and there is no specific treatment to significantly improve the course of the disease. We report a 69-year-old male who presented to the Lok Nayak Hospital, New Delhi, India, in 2017 with dyspnoea and chest pain. A peripheral blood smear showed an absolute plasma cell count of 2.16 × 109/L. A bone marrow examination showed 61% atypical plasma cells exhibiting kappa light chain restriction. Biochemical investigations were consistent with a diagnosis of primary PCL with renal involvement. Bortezomib-based chemotherapy was initiated, which resulted in an improvement in the patient's haematological and biochemical parameters. This case report includes a comprehensive review of the clinical and diagnostic features, pathobiology and treatment of PCL.
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Affiliation(s)
- Sarika Singh
- Department of Pathology, Maulana Azad Medical College, New Delhi, India
| | - Ashutosh Rath
- Department of Pathology, Maulana Azad Medical College, New Delhi, India
| | - Surekha Yadav
- Department of Pathology, Maulana Azad Medical College, New Delhi, India
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