Acute lymphoblastic leukemia

• Long-term survival after allogeneic-matched sibling PBSC transplantation with conditioning consisting of low-dose busilvex and fludarabine in a 3-year-old boy with ataxia-telangiectasia syndrome and ALL.
• New diagnosis of atypical ataxia-telangiectasia in a 17-year-old boy with T-cell acute lymphoblastic leukemia and a novel ATM mutation.
• The management of hyperleukocytosis in an adult patient with acute lymphoblastic leukemia and ataxia-telangiectasia.