in an examination of the biologic differences between neuroblastoma stage iv-s ( metastases to liver , skin , or bone marrow but not to bone ) , which has a high likelihood of spontaneous regression , and stage iv ( metastases to bone ) , which is usually fatal , 13 children with stage iv-s disease and 17 with stage iv were studied at diagnosis or shortly thereafter .
C0262950
bone
C0153690
metastases to bone