Bladder transitional cell carcinoma.

We present a case of urinary bladder carcinoma in a child aged 13 that followed a benign course. This confirms the idea that epithelial bladder cancer in children pursues, a much less aggressive behaviour than in the adult, possibly on the basis of its well-differentiated nature. Despite the rarity of the lesion, it should not be overlooked in the differential diagnosis of haematuria in children.