A 50-year-old woman presented with a 2-year history of facial lesions that were resistant to rosacea therapy. Evaluation of histology, immunohistochemistry, gene rearrangement study, bone-marrow biopsy specimen, and systemic workup revealed the findings of lymphoplasmacytoid lymphoma (immunocytoma) in both the skin lesions and bone marrow, and IgM kappa paraprotein. Lesions cleared after chemotherapy.
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Optimal use of BTK inhibitors in Waldenström's macroglobulinemia: combination or single drug approach?
Ther Adv Hematol
December 2024
Department of Clinical Therapeutics, Faculty of Medicine, National and Kapodistrian University of Athens, 80 Vassilisis Sofias Avenue, Athens 11527, Greece.
Waldenström macroglobulinemia is an indolent B-cell lymphoma which although remains incurable, there are a lot of treatment options. Today, Bruton tyrosine kinase inhibitors have a central role in the management of the disease either as monotherapy or combination with other regimens, due to their efficacy, ease of administration, and safety profile. However, there is still active clinical investigation to further increase their efficacy and improve safety profile.
View Article and Find Full Text PDFWaldenström Macroglobulinemia-Induced Cardiac Amyloid Light Chain Amyloidosis.
Ochsner J
January 2024
Division of Cardiology, Baylor Scott & White Medical Center, Temple, TX.
Waldenström macroglobulinemia is a rare cancer of plasma cells characterized by the excessive production of immunoglobulin M (IgM). IgM-associated systemic amyloid light chain (AL) amyloidosis is a rare complication of Waldenström macroglobulinemia, characterized by the misfolding of lambda light chains that deposit in various organs, including the heart. We describe a case of progressive nonischemic cardiomyopathy secondary to Waldenström macroglobulinemia and IgM-associated AL amyloidosis that was refractory to medical therapy and highlight the challenges in diagnosis and management.
View Article and Find Full Text PDFMutational Landscape of Bone Marrow CD19 and CD138 Cells in Waldenström Macroglobulinemia (WM) and IgM Monoclonal Gammopathy of Undetermined Significance (IgM MGUS).
Cancer Med
December 2024
Niguarda Hospital, Department of Hematology and Oncology, Milano, Italy.
Background: Despite recurrent and activating mutations, including MYD88, CXCR4, ARID1A, KMT2D, and CD79B were identified, the genetic basis for Waldenström's Macroglobulinemia (WM) and the risk of progression of IgM MGUS to WM remain to be fully elucidated.
Methods: We investigated the mutation status of WM (n = 8), sWM (n = 7), and IgM MGUS (n = 5) patients, by performing high-throughput targeted AmpliSeq NGS on 117 target genes. Specifically, we analyzed the CD19+ cells from 15 WM/sWM patients and five IgM MGUS patients.
Uncovering a lymphoplasmacytic lymphoma/Waldenström macroglobulinemia initially manifesting as dizziness detected through abnormal serum lipemia index: A case report.
Medicine (Baltimore)
December 2024
Department of Clinical Laboratory, Xiangya Hospital, Central South University, Changsha, Hunan Province, China.
Rationale: Automated serum index is widely used in biochemical testing, enabling the observation of sample characteristics to a certain extent. The differences between serum lipemia index and sample characteristics can, to a certain extent, facilitate early detection of certain diseases.
Patient Concerns: This is a case report of an elderly patient who was admitted to cardiology outpatient clinic due to dizziness.
Sequential Occurrence of Eosinophilic Gastrointestinal Disease in a Case of Waldenström's Macroglobulinemia in Remission: An Unusual Report with Review.
Int J Hematol Oncol Stem Cell Res
October 2024
Apollo CBCC Cancer Care, Ahmedabad, Gujarat, India.
Waldenström macroglobulinemia (WM) is a rare lymphoproliferative malignancy presenting with para-proteinemia. The symptoms are attributable to both lymphoproliferation and IgM flare. Gastrointestinal manifestations are not uncommon.
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