[Acquired Von Willebrand disease with chronic lymphocytic leukaemia and angiodysplasia (author's transl)].

The onset of an haemorragic syndrome in a patient with chronic lymphocytic leukaemia led to the diagnosis of acquired von Willebrand's disease secondary to an anti-von Willebrand factor antibody. Multiple angiodysplasia were shown by an arteriography done for a ruptured femoral arterial aneuvrism. The relationship between angiodysplasia and acquired von Willebrand disease are discussed.