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