Pediatric Medulloblastomas: Classification, Pathophysiology and Therapeutics
Bibliographic record
Abstract
Medulloblastomas are a type of primary malignant brain tumour arising within the cerebellum and posterior cranial fossa adjacent to the fourth ventricle. Medulloblastomas are the most common primary malignant brain tumours in the pediatric population and an increasing body of basic and clinical research is providing important insights into the etiology, pathogenesis and development of novel therapeutics to treat these highly invasive tumours. Recent advances in genomics and transcriptomics have allowed researchers to classify and diagnose medulloblastomas based on differences in genetic and transcriptome factors. Based on these findings medulloblastomas have been classified into four main subgroups including the: 1) Wnt subgroup, 2) Shh subgroup, 3) Group 3 tumours and 4) Group 4 tumours. These advancements in classifying and diagnosing medulloblastomas are important as different tumour subgroups have different pathophysiology, differing prognoses and variable responses to treatment. This article will briefly highlight the latest classification criteria of pediatric medulloblastoma, review molecular and genetic features believed to be involved in the pathogenesis of each of the 4 subgroups of medulloblastoma and provide an overview of treatments and therapies that are currently available and in development for medulloblastoma.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".