IL18 and breast angiosarcoma: Although there was no difference in these cytokines in the serum of BA patients who underwent a successful KPE and patients in whom the KPE was unsuccessful, the authors found significant differences when they divided the group of BA patients in those who underwent an LTx and those who still survived with their native liver; all cytokines except IL-18 were significantly elevated at 6 months post-KPE in patients requiring early LTx.