Angio-immunoblastic lymphadenitis: remarks about two cases.

Two patients with clinical and pathological symptoms of so-called angioimmunoblastic lymphadenitis are presented. Both patients were over 50, with multiple lymphadenopathies, fever, pruritus and hyperglobulinemia. The lymph node changes exhibited a characteristic histological triad consisting of diffuse lymphoid proliferation, small arborizing vessels proliferation and paraamyloid-like amorphous material deposition. As previous authors suggested, the disease seems to be the expression of a prolonged hyperimmune response induced by the hypersensitivity to certain factors.