Medulloblastoma, Non-WNT/Non-SHH

**Semantic type:** Neoplastic Process

**Definition:** Medulloblastoma not associated with activation of the WNT pathway or sonic hedgehog (SHH) pathway. TP53 mutations are absent. This molecular subtype includes medulloblastomas numerically designated as "group 3" and "group 4".

**Synonyms:** - Medulloblastoma, non-WNT/non-SHH - Non-WNT/Non-SHH Medulloblastoma - Non-WNT/non-SHH Activated