A secondary CD34+ acute lymphoblastic leukemia unmasked and mobilized by G-CSF in an autologous stem cell donor with testicular cancer.

Background: Late complications of chemotherapy include treatment-related secondary leukemias. We describe an unusual case of a new treatment-related acute lymphoblastic leukemia (t-ALL) that was unmasked and mobilized by G-CSF during autologous hematopoietic progenitor cell collection (HPCC) in a young man with testicular cancer.

Methods: Electronic chart review of the patient medical history and pertinent laboratory findings.