The cases of two patients with chronic myelomonocytic leukaemia associated with periarteritis nodosa-like, antineutrophil cytoplasmic antibody negative, systemic vasculitis, are reported. A 61 year old man was admitted with fever, diffuse myalgia, and abdominal pain. Blood and bone marrow examination showed chronic myelomonocytic leukaemia. Vasculitis of the gall bladder was responsible for aca...
