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Iodine-123–metaiodobenzylguanidine scan showing focal tracer activity in left distal femur of an asymptomatic 7.2-year-old girl who was 34 months from diagnosis. Concurrent routine surveillance studies, including bone marrow histology and urine catecholamines, showed no evidence of neuroblastoma. Magnetic resonance imaging demonstrated an intramedullary lesion. She is in second complete remission 17+ months later. L, left; R, right.
