[Tumor of the upper urothelium: radical treatment and prognostic factors].

The paper presents the results obtained from a study of 28 patients with high urothelial tumour, treated with radical surgery (total nephroureterectomy). Multivariable study of survival rates (Cox models) indicates that cellular differentiation is the most significant prognostic factor. Single variable study indicates that tumour stage has some significance mainly due to the large relationship to the degree of cellular anaplasty.