Outcomes of children with well-differentiated fetal hepatoblastoma treated with surgery only: Report from Children's Oncology Group Trial, AHEP0731

•Pure or well differentiated fetal histology has the best outcomes out of all hepatoblastoma histologies.•Well differentiated fetal tumor surgically removed at diagnosis are curable without adjuvant chemotherapy.•HB completely resected at diagnosis with 100% well differentiated fetal histology is curable with surgery and no adjuvant chemotherapy.•Evidence-based surgical guidelines utilizing internationally constructed criteria are crucial for identifying appropriate patients for resection at diagnosis.