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Updated: Jul 8, 2026
A Three-Dimensional Spheroid Model to Investigate the Tumor-Stromal Interaction in Hepatocellular Carcinoma
Published on: September 30, 2021
[Hepatoblastoma for pathologists in 2025]
William Pouillot1, Théo Z Hirsch2, Katia Posseme3
1Service d'anatomie pathologique, hôpital Bicêtre, AP-HP, GHU Paris Saclay, 78, rue du Général-Leclerc, 94270 Le Kremlin-Bicêtre, France; Faculté de médecine, université Paris Saclay, 63, rue Gabriel-Péri, 94270 Le Kremlin-Bicêtre, France.
Hepatoblastoma, a rare childhood cancer, shows increasing incidence and diverse morphology. Precise pathological characterization is vital for understanding tumorigenesis and improving outcomes for this pediatric tumor.
Area of Science:
- Pediatric Oncology
- Tumor Pathology
- Cancer Genomics
Background:
- Hepatoblastoma is a rare pediatric malignancy, comprising less than 1% of childhood cancers, with an increasing incidence.
- It predominantly affects children aged 6 months to 5 years, with survival rates varying by risk group (90% standard, 65% high).
- Tumor heterogeneity, combining epithelial, mesenchymal, and teratoid features, presents diagnostic challenges.
Purpose of the Study:
- To highlight the critical role of pathologists in diagnosing hepatoblastoma.
- To emphasize the need for precise morphologic and molecular characterization of hepatoblastoma subtypes.
- To underscore the importance of identifying new biomarkers for improved understanding and treatment.
Main Methods:
- Review of morphologic and molecular characteristics of hepatoblastoma.
- Analysis of diagnostic challenges, including hepatocellular neoplasms not otherwise specified (HCN-NOS) and undifferentiated small cell components.
- International collaboration for tumor characterization.
Main Results:
- Hepatoblastomas exhibit significant morphologic heterogeneity.
- Well-defined subtypes exist, but challenges remain in classifying specific neoplasms.
- Advanced characterization aids in understanding tumorigenesis and identifying biomarkers.
Conclusions:
- Accurate pathological diagnosis is essential for effective clinical management of hepatoblastoma.
- Continued research into morphologic and molecular features is crucial for advancing the field.
- International collaboration enhances the understanding and characterization of this rare pediatric tumor.
