A simultaneous presentation of uncommon, pigmented lesions: Oral melanoacanthoma and moderate oral epithelial dysplasia.
Bibliographic record
Abstract
Introduction: Melanin-containing mucosal lesions can present a diagnostic challenge due to the presence of a wide range of lesions with a similar clinical appearance. Case description: This is a report of a unique case of the simultaneous presentation of 2 pigmented lesions in a 68-year-old white female patient. Discussion: The first pigmented lesion on the ventral tongue was diagnosed as melanoacanthoma, which does not have any potential for malignant transformation. The ventral tongue is a very unusual location for a melanoacanthoma. Interestingly, another lesion on the buccal mucosa with a similar appearance presented as moderate epithelial dysplasia with increased melanin pigment that has the potential for malignant transformation. Pigmented moderate oral epithelial dysplasia is a very rare condition. The simultaneous presence of a melanoacanthoma would have led to a mistaken assumption of multifocal melanoacanthoma which, although rare, has been described in the literature. Conclusion: These findings reinforce that it is prudent to perform multiple biopsies of all suspicious oral lesions.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 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".