[Urotelial cystosis. Review of the national statistics with a personal contribution]

After a short explanation of the concept of urotelial cystosis, the authors compile all the cases which have been presented under the name of cystic ureteritis by Spanish urologists up to 1979, to which they add one more, thereby bringing the national statistics to 31. They comment upon the Spanish contribution to the subject in the clinical field as well as the field of etiological research.