What is Waldenström Macroglobulinemia? What is it characterized by and name some common complications

a) Clonal proliferation of B cells with excess production of IgM; Hyperviscosity syndrome, bleeding
b) Proliferation of T lymphocytes; Organ damage due to monoclonal gammopathy
c) Circulating hairy cells; Renal insufficiency
d) Clonal proliferation of myeloblasts; Thrombocytopenia