JAK2 and acute lymphoblastic leukemia: The same year, Peeters et al [13] reported the same ETV6-JAK2 fusion and 9;12-translocation in a child with early B-precursor ALL and t(9;12)(p24;p13) and an adult patient with atypical chronic myeloid leukemia with a t(9;15;12) (p24;q15;p13) in the bone marrow cells.