ETMR
Also written as: ETMR — Embryonal Tumour with Multilayered Rosettes
Abbreviation for embryonal tumour with multilayered rosettes, an aggressive paediatric CNS tumour defined by C19MC amplification.
Full Definition
ETMR is the standard abbreviation for embryonal tumour with multilayered rosettes as classified in the WHO CNS5 (2021) taxonomy. Editors should flag uses of the older synonyms ETANTR or ependymoblastoma (when applied to C19MC-amplified tumours) and recommend replacement with ETMR. The abbreviation is used in neuropathology reports, molecular genetics summaries, and paediatric oncology literature. It should be spelled out in full at first mention in any document.
Usage
Usage note: Predecessor abbreviation ETANTR is obsolete; flag and replace with ETMR when editing post-2021 documents.
In Context
- "The neuropathology report listed the diagnosis as ETMR following confirmation of C19MC focal amplification." — Neuropathology report
- "ETMR replaced ETANTR and ependymoblastoma in the 2021 WHO CNS classification; authors using the older terms should be advised accordingly." — Peer-review editorial comment