H3K27M-mutant spinal cord and hemispheric tumor with prolonged survival: illustrative case
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
BACKGROUND: H3K27M-altered diffuse midline glioma (DMG) is a recently classified tumor in the 2021 WHO classification of central nervous system tumors. Pediatric patients with H3K27M-altered DMG have a universally poor prognosis, with a median survival of 9-15 months. The prognosis of adult patients with the same tumor type is more variable, with rare cases of prolonged survival. OBSERVATIONS: The authors report the case of a 32-year-old male who presented with Brown-Séquard syndrome secondary to a heterogeneously enhancing intramedullary mass extending from T7 to T10. The lesion was resected, and the patient was diagnosed with an H3K27M-altered DMG. The patient presented again 29 months later with a nonenhancing right-sided temporal mass. This was again determined to be an H3K27M-mutated glioma with a molecular signature similar to the intramedullary mass. He received postoperative radiation therapy after each surgery and continued to survive well at the 42-month follow-up. LESSONS: The authors report the rare case of an adult-onset H3K27M midline glioma in the spinal cord and subsequent dissemination to the right temporal lobe with prolonged survival. This suggests that H3K27M-altered DMGs are heterogeneous entities with variable prognoses based on location and age. https://thejns.org/doi/10.3171/CASE24668.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it