[Epithelial tumors of the urinary tract in children].

Through 1987 the authors observed and treated ten children with malignant urothelial cancers of the urinary tract: three malignant papillary cancers, six cancers of the bladder and one papilloma of the pyeloureteral segment. All were transitional cell cancers. The methods of diagnosis and treatment are described. The early results were good and the late results did not reveal any recurrence. All children are alive, except for one case with cancer of the bladder. Death in this case was due to lung cancer eighteen months after cystectomy. The authors analyse the aetiological factors involved in these tumours for the year 1987, taking into account the ecological-radioactive contamination of our country, after the accident of Chernobyl in 1986.