[Transitional-cell bladder tumor in childhood].

Tumors of transitional cells of the bladder are unusual in children under fourteen. Characteristics of these tumors to be highlighted are their usual presentation through macroscopic hematuria, as well as the existing controversy about the anatomicopathologic diagnosis along with the generally good prognosis of these tumors, although they need an appropriate follow-up due to some described cases of relapses and even death.