[Pathologic classification of upper urinary tract tumors].
OBJECTIVE
To do an update on the upper urinary tract tumors classification systems.


RESULTS
Bibliography review of the various classification systems appeared over the last years, comparing them and reviewing their associated problems.


CONCLUSIONS
Current systematization advocated by WHO and ISUP are the most adequate for patient stratification. However, there are problems for coupling tumors with characteristics in the limit between some of their categories, so that we consider it will be convenient to review them.
García-Navas
Ricardo
R
Servicio de Urología, Hospital "Ramón y Cajal", Madrid, España.
García-González
Ricardo
R
Pérez-Sanz
Pilar
P
González-Peramato
Pilar
P
D006801:Humans; D007680:Kidney Neoplasms / Q000145:classification* / Q000473:pathology; D014516:Ureteral Neoplasms / Q000145:classification* / Q000473:pathology; D014551:Urinary Tract / Q000473:pathology