Squamous cell carcinoma of the bladder in a pediatric patient.

A 16-year-old North American girl with a prior history of a bladder calculus removed by open cystolithotomy 8 years earlier, subsequently had squamous cell carcinoma of the bladder along the site of the previous incision. The authors believe that this child is the youngest documented patient with squamous cell carcinoma of the bladder not associated with schistosomiasis.