DOI: 10.12890/2026_006261

Coexisting Waldenström macroglobulinaemia and alveolar echinococcosis presenting with chylothorax that resolved on treatment: a diagnostic and therapeutic challenge

Authors

  • François Perramond Department of Internal Medicine, Hôpital de Saint-Imier, Saint-Imier, Switzerland
  • Serge Bugnon Department of Internal Medicine, Hôpital de Saint-Imier, Saint-Imier, Switzerland
  • Jérôme Voegeli Department of Haematology, Centre Médico-Chirurgical Volta, La Chaux-de-Fonds, Switzerland
  • Annalisa Berzigotti Department of Hepatology, Inselspital, Hôpital Universitaire de Berne, Berne, Switzerland 0000-0003-4562-9016

francois.perramond@outlook.com

Keywords

Waldenström macroglobulinaemia, chylothorax, alveolar echinococcosis, zanubrutinib

Abstract

Introduction: Waldenström macroglobulinaemia is a lymphoplasmacytic lymphoma producing monoclonal immunoglobulin M (IgM), and both the disease and its treatment can cause immunosuppression. Alveolar echinococcosis is a parasitic infection that primarily involves the liver but may present with extrahepatic manifestations.
Case description: We report the case of a patient who presented with chylothorax and non-specific hepatic lesions and was then diagnosed with Waldenström macroglobulinaemia. In addition to this diagnosis, alveolar echinococcosis was subsequently confirmed by liver biopsy and serology.
Discussion: Diagnostic interpretation was challenging, as these features may occur in both conditions. A multidisciplinary approach was needed to establish the treatment plan due to overlapping symptomatology and the risk of treatment-related immunosuppression.
Conclusion: This case highlights the importance of considering a broad differential diagnosis for a chylothorax and hepatic lesions in an oncological context and illustrates the therapeutic challenges of managing an indolent haematologic malignancy in the context of a chronic parasitic infection.

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References

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Published

2026-04-07

How to Cite

1.
Perramond F, Bugnon S, Voegeli J, Berzigotti A. Coexisting Waldenström macroglobulinaemia and alveolar echinococcosis presenting with chylothorax that resolved on treatment: a diagnostic and therapeutic challenge. EJCRIM [Internet]. 2026 Apr. 7 [cited 2026 Nov. 3];13(5). Available from: https://ejcrim.com/index.php/ejcrim/article/view/6261