Related Experiment Video
Updated: Aug 5, 2026
Murine Model of Leukemia Relapse to Induction Chemotherapy for Acute Lymphoblastic Leukemia
Published on: October 17, 2025
Long-term Survival and Relapse Patterns in Pediatric Hepatoblastoma: A 20-year Single-center Experience
Mehtap Ertekin1,2, Aytul Temuroglu2, Fatih Celik3
1Department of Pediatric Hematology and Oncology, Izmir City Hospital, Izmir.
Background:
Despite advancements, managing high-risk and metastatic hepatoblastoma remains challenging. This study evaluates 2 decades of clinical experience to identify long-term prognostic drivers and the evolving role of event-free survival (EFS).
Methods:
This cohort consisted of 39 children with hepatoblastoma from 2004 to 2024. The clinical characteristics, PRETEXT, risk group, alpha-fetoprotein level, pulmonary metastasis, and treatment modalities were reviewed. The overall and event-free survival were estimated using the Kaplan-Meier method and log-rank tests. Univariable Cox regression was performed to evaluate the impact of pulmonary metastasis on EFS.
Results:
The mean age at diagnosis was 3.6±4.3 years. The 5-year OS and EFS rates were 81.2% and 75.0%, respectively. Six deaths and 9 events were recorded. OS was not significantly influenced by risk group (P=0.093), PRETEXT stage (P=0.177), and AFP (P=0.214). Pulmonary metastasis at diagnosis was associated with poor EFS (log-rank P=0.048). In the univariable Cox model for EFS, pulmonary metastasis was associated with a higher risk for events (HR 3.83, 95% CI 0.91-16.10, P=0.067).
Conclusions:
Long-term overall survival was favorable in this cohort. Pulmonary metastasis emerged as the variable most closely linked to inferior event-free survival, whereas traditional clinical and staging variables were not significantly associated with overall survival.