A novel reciprocal translocation (14;15)(q11;q24) in a congenital mesoblastic nephroma

We describe a novel reciprocal translocation, t(14;15)(q11;q24), as the sole cytogenetic aberration in a congenital mesoblastic nephroma. The tumor was predominantly of “classic” morphology, but with small cellular islands of larger cells indicating early transformation to the cellular type. This is the first report of a reciprocal translocation as the sole anomaly in a congenital mesoblastic nephroma.