Follow-up and earlyoutcomes
With a median follow up of 6 months (2-14 months), 4 patients had progressed (after a median time of 3 months) of which 3 patients progressed in the irradiated volume whereas 1 child with refractory yolk sac tumor progressed with lung metastases. Three of these patients are undergoing salvage treatment whereas one patient remains controlled after salvage surgery and chemotherapy. All other patients continue to be on follow-up and have no clinical or radiological signs of progression.