[Angioimmunoblastic lymphadenopathy. 3 cases with polyclonal gammopathy].

Three patients with an atypical lymphoproliferative disorder disorder and polyclonal gammopathy have been reviewed retrospectively. The clinical and histological findings are compatible with the recently described entity of angioimmunoblastic lymphadenopathy. Two patients died within 6 months after the first symptoms of the disease. Circulating immuncomplexes were demonstrated in the serum of 2 patients. In one patient with a nearly fourfold increase of IgG, persistent hyponatremia was found.