Fig. 2.

Comparison of the detection of emerging recipient chimerism by STR-PCR and indel-qPCR. The fraction of recipient chimerism in samples taken after HSCT is depicted for all 7 cases of earlier detection of re-emerging recipient hematopoiesis by indel-qPCR compared to STR-PCR. The underlying disease of each patient and the time-point of cytological or molecular relapse relapse (if available) is given for each patient. The percentage for samples with recipient chimerism <1% is specified above the respective bar graphs. AML = Acute myeloid leukemia; ALL = acute lymphoblastic leukemia; DLI = donor lymphocyte infusion; MM = multiple myeloma; n.d. = not detectable, NHL = non-Hodgkin's lymphoma; STR = short-tandem-repeat; indel = micro insertion/deletion; BM = bone marrow; PB = peripheral blood; cytol = cytological; mol = molecular; RL = relapse; HSCT = hematopoietic stem cell transplantation.