[Wunderlich syndrome: presentation of a case]. / Síndrome de Wunderlich: aportación de un caso.

We present a case of spontaneous renal bleeding due to renal neoplasia. We analyse other causes of Wunderlich's syndrome and, following Kendall, we defend the indication of radical nephrectomy especially of non-filiated etiology in the cases in which other causes have been discounted and the contralateral kidney is sound.

[Cystic pyeloureteritis. Presentation of 10 cases]. / Pieloureteritis quística. Presentación de 10 casos.

Based on the analysis of 10 cases of cystic pyeloureteritis, a rare entity of benign outcome, the authors suggest that the cysts might be the result of an hyperreactivity of the urothelium to an aggression, and feel that the correction of the etiologic factors might prevent the evolution of Von Brunn's nests.