Meyerson Phenomenon in Children: Observation in Five Cases of Congenital Melanocytic Nevi
Why this work is in the frame
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Bibliographic record
Abstract
To describe the characteristics of five pediatric patients with the Meyerson phenomenon associated with congenital melanocytic nevi, five cases were reviewed to retrieve information relating to clinical presentation, treatment and evolution of the eczematous phenomenon and of the nevi. Three of five patients were male. Mean age at presentation of the Meyerson phenomenon was 23 months (range: 4 mos-4 yrs). Three patients presented with only one halo eczematous lesion, while two patients presented with more then one halo eczematous lesions. The halo eczematous lesions were located on the leg, arm, and trunk in four, two, and two patients, respectively. All were associated with congenital melanocytic nevi with overlying hypertrichosis. Four were treated with topical corticosteroids, and five developed some degree of hypopigmentation within the nevic lesion. In children with Meyerson phenomenon associated with congenital hairy melanocytic nevi, neither trigger to the eczematous eruption nor preferential gender or anatomical site location was identified. The Meyerson phenomenon evolved towards hypopigmentation of the congenital melanocytic nevic lesions in all patients but no other cutaneous changes were observed on follow-up.
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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) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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