A two-step evaluation system is proposed to analyze the results of therapy for stage IV neuroblastoma in children over 1 year of age. Since most protocols consist of first-line chemotherapy followed by surgery and often high-dose chemotherapy with bone marrow rescue, "response" should assess the effect of chemotherapy alone and "remission" indicate the status after an attempt to remove the primary tumor. A scoring system is proposed for both steps. The comparability of different studies depends on the use of such common criteria to define patient groups and treatment results.