T(15;17) in acute promyelocytic leukemia is not associated with submicroscopic deletions on der(17)

We report a fluorescent in situ hybridization (FISH) study on 34 patients with acute promyelocytic leukemia. The study was designed to detect microdeletions in the derivative chromosome 17 which is the result of a reciprocal translocation t(15;17). No deletion was found.