[Chronic lymphoid leukemia, leiomyoblastoma, thrombosing vasculitis and anticardiolipin antibodies: apropos of a case]

The authors report a complex case in which chronic lymphoid leukaemia was associated with leiomyoblastoma of the digestive tract and cutaneous thrombosing vasculitis with serum anti-cardiolipin antibodies. They discuss a new physiopathogenetic mechanism of vasculitis in blood diseases.