[Waldenström macroglobulinemia--clinical manifestations and differential diagnosis and prognosis of the disease].

Waldenström macroglobulinemia is defined by the presence of IgM type monoclonal immunoglobulin and histological prove of lymphoplasmocytary lymphoma in the bone marrow. Clinical symptoms of the disease depend on the pressure on the bone marrow by the malignant clone with subsequent cytopenia, extramedullary infiltration and toxic manifestations of monoclonal immunoglobulin. 6q deletion and absence of translocation in the sphere of the heavy immunoglobin chain gene, which is otherwise typical for other lymphoproliferative disorders, is the typical cytogenetic abnormality. The text describes the symptoms of the disease and the issues of its differential diagnosis.