Relapsed Wilmsʼ tumor

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Abstract
TO IDENTIFY FACTORS CONTRIBUTING to extended survival among patients with relapsed Wilms' tumor, we assessed 10 clinical and biologic variables thought to have predictive value. With a median follow-up of 6 years, 32 (20%) of 156 patients who achieved complete remission have relapsed. Twenty-four have died with recurrent tumor, and eight are surviving for 2 to 12 years from diagnosis. Only time to relapse, or length of initial complete remission, had a significant influence on survival. Of 11 patients with complete remissions lasting longer than 12 months, six have died-compared with seven of 10 having remissions of 6 to 12 months and 11 of 11 with shorter remissions (p = 0.014). Surgery alone was the curative therapy in three of the eight surviving patients. Until more effective chemotherapy regimens are developed, an aggressive surgical approach may be indicated in selected patients with relapsed Wilms tumor.

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