Final answer:
Neuroblastoma has a good prognosis even if it has metastasized because it may regress.
Step-by-step explanation:
Among the listed childhood tumors, Neuroblastoma has a good prognosis even if it has metastasized because it may regress. Neuroblastoma is a cancer that develops from immature nerve cells and commonly originates in the adrenal glands. In some cases, the tumor can spontaneously regress, especially in infants under 18 months of age.