| HB | hepatoblastoma |
| HCC | Hepatocellular carcinoma |
| SEER | Surveillance, Epidemiology and End-Results |
| SRTR | Scientific Registry for Transplant Recipients |
| AFP | alphafetoprotein |
| HCN-NOS | Hepatocellular neoplasm NOS |
| SCU | small cell undifferentiated hepatoblastoma |
| N:: C | nuclear to cytoplasmic ratio |
| PHITT | Pediatric Hepatic International Tumor Trial |
| SIOPEL | Société Internationale d’Oncologie Pédiatrique—Epithelial Liver Tumor Study Group |
| PRETEXT | Pretreatment Extent of Tumor |
| POSTTEXT | Post-treatment extent of Tumor |
| COG | Cooperative Oncology group |
| JCCG | Japan Children’s Cancer Group |
| MRT | malignant rhabdoid tumor |
| PLADO | Cisplatin and doxorubicin |
| C5VD | combination of cisplatin/5-flurouricil/vincristine/doxorubicin |
| EFS | event-free survival |
| PLUTO | Pediatric Liver Unresectable Tumours Observatory |
| TMB | tumor mutation burden |
| Mut | mutations |
| ctDNA | circulating tumor DN |
| MHC | major histocompatibility complex |