 - Arm I: Patients receive a dosimetry dose of indium In 111 anti-CD66 monoclonal antibody BW250183 IV on day 1 and undergo gamma camera imaging and serial blood samples on days 1-5. Patients then receive a therapeutic dose of yttrium Y 90 anti-CD66 monoclonal antibody BW250183 IV once between days 9 and 16 and high-dose melphalan IV on day 28. Patients then undergo autologous hematopoietic stem cell transplantation HSCT on day 30. 