Multi-institutional review of neuroblastoma patients treated with iodine-131 metaiodobenzylguanidine (131I-MIBG) therapy.
Competing risk approach used to find cumulative incidence of second malignant neoplasm (SMN) from first MIBG.
Cumulative risk of SMN after MIBG therapy was 14% at 10 years.
Results similar to risk after myeloablative therapy; no dose-dependent increase.