PRETEXT (Pretreatment Extent of Disease) and POST-TEXT (Post-treatment Extent of Disease) extent of liver involvement system for hepatoblastoma

Reprinted by permission from Macmillan Publishers Ltd: Modern Pathology. Lopez-Terrada D, Alaggio R, de Davila MT, et al. Towards an international pediatric liver tumor consensus classification: Proceedings of the Los Angeles COG liver tumors symposium. Mod Pathol 2014; 27:472. Copyright © 2014. https://www.nature.com/modpathol/.