Extramedullary disease in Waldenström macroglobulinemia: A population‐based observational study

Simon Østergaard*, Lars Munksgaard, Torsten Holm Nielsen, Troels Hammer, Lars Møller Pedersen, Mette Ølgod Pedersen, Lise Mette Rahbek Gjerdrum

*Corresponding author for this work

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Abstract

Introduction: Extramedullary disease (EMD) is a rare manifestation of Waldenström macroglobulinemia (WM), and its clinical and prognostic implications are poorly understood. Methods: In this single-center study, we investigated the clinical significance of EMD in a cohort of 469 WM patients. Results: EMD was identified in 30 (6.4%) patients, with the central nervous system, kidneys, and lungs being the most frequently affected sites. The cumulative incidence of EMD was 12.6% at 15 years. Median overall survival rates at 5 and 10 years for patients with EMD were 63% and 37%, respectively. Conclusion: Our findings indicate a persistent risk of EMD throughout the disease course, with no significant impact on long-term survival.
Original languageEnglish
JournaleJHaem
Volume5
Issue number6
Pages (from-to)1269-1273
Number of pages5
ISSN2688-6146
DOIs
Publication statusPublished - 2024

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