Risk of relapse and second cancers after hematopoietic-cell transplantation. The schema for relapse may not apply to diseases such as multiple myeloma where autologous transplantation primarily prolongs remission duration and does not lead to long-term cure.
 Abbreviations: PTLD, post-transplant lymphoproliferative disorder; MDS, myelodysplastic syndrome; AML, acute myeloid leukemia.