A case of M2 acute myeloblastic leukemia associated with an interstitial 9q deletion.

We report a patient with M2 acute myeloblastic leukemia who has acquired a chromosomal deletion, del(9)(q12q33), as the sole karyotypic abnormality in her bone marrow cells. A brief review of the interstitial deletions of the long arm of chromosome #9 in acute nonlymphocytic leukemia is also presented.