| IVthV | Fourth ventricle |
| 5AZA-DC | DNA methylase transferase inhibitor 5-aza-2′-deoxycytidine |
| AKT | Protein kinase B |
| ATRX/DAXX | Alpha-thalassemia, mental retardation, X-linked/death domain–associated protein complex |
| AURKA | Auro A-kinase |
| BET | Bromodomain and extraterminal domain |
| Brd4 | Bromodomain-containing protein 4 |
| c-KIT | Proto-oncogene encoding tyrosine-protein kinase KIT, CD117, or stem cell growth factor receptor |
| c-MYB | c-myeloblastosis |
| CAR T | Chimeric antigen receptor T cell |
| Cbp | CREB-binding protein |
| Cdc42 | Cell division cycle 42 |
| COX2 | Cyclooxygenase-2 |
| CNS | Central nervous system |
| CRL4 | Cullin Ring Ubiquitin Ligase 4 |
| CSF | Cerebrospinal fluid |
| CXCR4 | C-X-C chemokine receptor type 4 |
| EANO | The European Association of Neuro-Oncology |
| EED | Embryonic ectoderm development |
| EMA | Epithelial membrane antigen |
| Ep300 | Histone acetyltransferase p300 |
| EPHA7 | Ephrin type-A receptor 7 |
| ERK | Extracellular Signal-Regulated Kinase |
| ERM | Ezrin, radixin, moesin binding protein |
| EZHIP | EZH Inhibitory Protein or CXorf67 |
| EZH2 | Enhancer of zeste homolog 2 |
| FAK | Focal Adhesion Kinase |
| FAM 118B | Family with sequence similarity 118 member B |
| FGFR3 | Fibroblast growth factor receptor 3 |
| FOXJ1 | Forkhead box protein J1 |
| GFAP | Glial fibrillary acidic protein |
| GTR | Gross total resection |
| H3K27M | Histone H3 lysine 27 to methionine mutation |
| H3K27me3 | Trimethylated histone H3 at lysine 27 |
| HDAC | Histone deacetylase |
| HE | Hematoxylin and eosin |
| HIF-1a | Hypoxia inducible factor 1 alpha |
| HOXA13 | Homeobox A13 |
| HOXB13 | Homeobox B13 |
| HOXC10 | Homeobox C10 |
| HOXD10 | Homeobox D10 |
| hTERT | Human telomerase reverse transcriptase |
| IkBα | Nuclear factor of kappa light polypeptide gene enhancer in B cells alpha |
| IL-6 | Interleukin-6 |
| IT | Infratentorial |
| KDM6 | Lysine-specific demethylase 6 |
| KIT | Tyrosine protein kinase or stem cell growth factor receptor or CD117 |
| L1CAM | L1 Cell Adhesion Molecule |
| LATS1/2 | Large Tumor Suppressor Kinase 1 and 2 |
| LDOC | Leucine zipper downregulated in cancer 1 |
| MAML2 | Mastermind like transcription coactivator 2 |
| MAMLD1 | Mastermind like domain containing 1 |
| MDM2 | Mouse double minute 2 homolog or E3 ubiquitin-protein ligase Mdm2 |
| MEF | Myocyte enhancer factor |
| MPE | Spinal myxopapillary ependymoma |
| mTORC1 | Mammalian Target of Rapamycin Complex 1 |
| MYCN | Myelocytomatosis-N |
| NCOA1 | Nuclear receptor coactivator 1 |
| NCOA2 | Nuclear receptor coactivator 2 |
| NEFL | Neurofilament light chain |
| NEC | Not elsewhere classified |
| NF-κB | Nuclear factor-κB |
| NF2 | Neurofibromatosis type 2 |
| NHERF1/EBP50 | Na+/H+ exchanger regulatory factor/ezrin-radixin-moesin binding protein 50 |
| NOS | Not otherwise specified |
| OS | Overall survival |
| PAK | P21 activated kinase |
| PARP | Poly (ADP-ribose) polymerase |
| PDGFRA | Platelet derived growth factor alpha |
| PFA | Posterior fossa ependymoma Group A |
| PFB | Posterior fossa ependymoma Group B |
| PFE | Posterior fossa ependymoma |
| PF-SE | Posterior fossa subependymoma |
| PFS | Progression-free survival |
| PI3K | Phosphoinositide 3-kinase |
| PIKE-L | Phosphoinositide 3-Kinase Enhancer-brain specific isoform |
| PLAGL | PLAG1 like zinc finger 1 |
| PRC2 | Polycomb repressive complex 2 |
| Rac1 | Ras-related C3 botulinum toxin substrate 1 |
| RAC | Ras-related C3 botulinum toxin |
| RAF | Rapidly accelerated fibrosarcoma |
| Ras | Rat sarcoma virus |
| RELA | REL-associated protein |
| SAM | S-adenosyl methionine |
| SE | Subependymoma |
| SET | Su(var)3-9/enhancer-of-zeste/trithorax |
| Shh | Sonic hedgehog |
| SP | Spinal |
| SPE | Spinal ependymoma |
| SPE-MYCN | Spinal ependymoma with MYCN amplification |
| SP-SE | Spinal subependymoma |
| ST | Supratentorial |
| ST-RELA | Supratentorial ependymoma with RELA fusion |
| ST-SE | Supratentorial subependymoma |
| ST-YAP1 | Supratentorial ependymoma with YAP1 fusion |
| STAT | Signal transducer and activator of transcription |
| STE | Supratentorial ependymoma |
| STR | Subtotal resection |
| SUZ12 | Suppressor of zeste 12 homolog |
| TEAD | Transcriptional enhancer factor domain |
| TAZ | Gene encoding protein Tafazzin |
| VEGF | Vascular endothelial growth factor |
| WHO | World Health Organization |
| WP744 | 4′-O-benzylated doxorubicin analog |
| WP1066 | JAK2/STAT3 inhibitor |
| WP1193 | JAK2/STAT3 inhibitor |
| YAP1 | Yes1 associated transcriptional regulator or YAP or YAP65 |
| ZFTA | Zinc finger translocation-associated |