[Acquired von Willebrand's disease, cryoglobulinemia and pseudoanalbuminemia in monoclonal dysglobulinemia].

The authors report an exceptional case of complex monoclonal dysglobulinaemia characterized by cryoglobulinaemia, pseudoanalbuminaemia and acquired type 1 Von Willebrand's disease. All these biological abnormalities are consecutive to the formation of molecular complexes in vivo. These complexes have also been found in vitro between albumin immunoglobulins G.