A 12-year-old Girl With an Extraosseous Chondrosarcoma
Bibliographic record
Abstract
Intracranial extraosseous chondrosarcomas are a rare entity and comprise less than 0.15% of all intracranial neoplasms. This is a report of a pediatric extraosseous chondrosarcoma with clinical, pathologic and radiographic findings of a twelve year old girl with a left parietal heterogeneously enhancing mass, confirmed by pathology to be an extraosseous chondrosarcoma. The imaging in this case revealed no restricted diffusion on diffusion-weighted imaging (DWI) but rather showed hyperintensity on apparent diffusion coefficient (ADC) mapping. The high diffusivity (dark signal on DWI, hyperintensity on ADC map) demonstrated in our case has not been reported previously with extraosseous chondrosarcomas, and is important to note in order to distinguish them from other neoplasms such as a meningiomas. doi: http://dx.doi.org/10.4021/jnr125w
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.004 | 0.003 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".