An 82-year-old male was hospitalised for dyspnoea, hypoxaemia and general fatigue; a predominant left chylothorax was revealed. Previously, he had been diagnosed with Waldenström's macroglobulinaemia (WM). Chylothorax complications in patients with WM are rare events and only six such cases have so far been reported. The most common malignant causes of chylothorax are through mediastinal adenopathy. Direct infiltration of the pleura by tumour cells is the most likely cause with this patient, and for this reason, we believe that this case is an instructive one. Chemotherapy induced rapid and persistent improvement after 10-month follow-up.
Keywords: Waldenström's macroglobulinaemia; chylothorax; lymphoplasmacytic cells; older people; pleura involvement.
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