Transient proliferation of donor-derived ATL cell-like lymphocytes early after allogeneic stem cell transplantation in an adult T-cell leukemia/lymphoma patient.

To the editor: A 46-year-old man was admitted to our hospital because of systemic lymphadenopathy and generalized erythema. White blood cell (WBC) count was 8.3 × 109/L with 8% morphologically abnormal lymphocytes that were positive for CD3, CD4, and CD25. Antibody against human T-cell