[Immunotherapy in superficial bladder carcinoma]. / Inmunoterapia en el carcinoma vesical superficial.

OBJECTIVE: To review the current status of superficial bladder cancer treatment with several immune response modifiers. METHODS: A review of the advances in the treatment of superficial bladder cancer with BCG, interferon, interleukin-2, bropirimine and keyhole-limpet hemocyanin was performed. RESULTS: Treatment with BCG has been demonstrated to be superior to intravesical chemotherapy and other immune response modifiers in the trials reviewed. BCG therapy, however, carries a higher toxicity. Several trials have demonstrated that in low and medium risk patients, it is better to administer low BCG doses to reduce the toxicity. Furthermore, the trials confirm the utility of maintenance schedules with BCG. CONCLUSION: The Calmette-Guérin Bacillus is the most effective adjuvant treatment in superficial bladder cancer, especially in the high risk patients. The other immune response modifiers are an alternative to this treatment.

[Recurrent nonparasitic chyluria]. / Quiluria redicivante no parasitaria.

OBJECTIVE: To describe a case of recurrent chyluria and review the diagnostic and therapeutic methods. METHODS/RESULTS: A case of non parasitic recurrent chyluria is presented. Retrograde pyelography demonstrated pyelolymphatic reflux. The patient presented chemical pyelitis secondary to the contrast medium which caused remission of the condition. CONCLUSIONS: Chyluria is uncommon in our setting. Postprandial cystoscopy permits identification of the compromised renoureteral unit and perform pyelic instillation of sclerosing agents. Surgery should be reserved for those cases in whom conservative management has failed.