[Spontaneous renal allograft rupture. Diagnosis and treatment. Report on five cases (author's transl)].

The authors describe five cases of renal allograft rupture as a result of acute rejection. In one case of perineal hematoma, no operation was performed. The evolution of the hematoma led to a periureteral sclerosis, which was successfully operated. The authors advocate deferring the surgical management of allograft ruptures. Once the diagnosis has been established with the aid of physical examination, electrography and computerized scanography, the extra time can be devoted to following the evolution of the rejection. If the rejection is irreversible, a nephrectomy has to be performed, but if it is reversible, they favour conservative treatment followed by operative intervention around the tenth day.