We report the cytogenetic and hematopathologic results from a patient diagnosed with acute myeloid leukemia. Although the initial specimen revealed an apparently normal male karyotype, a translocation, t(2;19)(q21;p13), was detected in the second specimen. It is not clear whether this was a primary or secondary and possibly chemotherapy-induced abnormality. In an extensive search of the recent medical literature database (Medline, 1966 to the present; CancerLit, 1983 to the present, MDX Health Digest, 1988 to the present; HealthSTAR, 1975 to the present, and CINAHL, 1982 to the present), we found no previous report of this specific translocation. This case is of interest not only because of its cytogenetic rarity and its unique clinical features, but also because of the fact that this patient worked in construction management, performing offshore drilling in oil fields for several years, and also worked with plastics and polymer film for about 4 years, although this past history of possible genotoxic exposure may or may not be of relevance. In addition, it is also of interest that one of the translocation breakpoints, 19p13, is apparently identical to that found in the 1; 19 translocation associated with pre-B cell acute lymphocytic leukemia.

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