We report a novel cytogenetic finding in a favorable histology Wilms tumor
occurring in a 4-month-old boy. Karyotypic analysis demonstrated a t(6;15)(
q21;q21) in all tumor cells examined. This was confirmed using fluorescence
in situ hybridization analysis. Molecular analysis of this rearrangement m
ay provide clues to understanding the pathobiology of Wilms tumor. (C) 2001
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