Inversion (14)(q11q32) in childhood T-cell acute lymphoblastic leukemia.

Inversion (14)(q11q32) is a common cytogenetic aberration in T-cell chronic lymphoid malignancies but is rare in T-cell acute lymphoblastic leukemia (T-ALL). We describe two cases of childhood T-ALL in which inv(14)(q11q32) was present concomitantly with other karyotypic aberrations typical of T-ALL. The possible significance of inv(14) in these cases is also discussed.