Outcome in 34 patients with juvenile‐onset mycosis fungoides
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Bibliographic record
Abstract
BACKGROUND: Mycosis fungoides (MF) is predominantly a disease of older patients, but occasionally occurs in children. The aims of the current study were to describe the clinical presentation, pathologic features, and disease progression (DP) in patients who developed MF before age 16 years. METHODS: A retrospective study was performed. Patients with juvenile-onset MF were identified from our databases. Clinical features were determined from the medical records and patient interviews. Histologic, immunohistochemical, and T-cell receptor (TCR) gene analysis was performed. RESULTS: Thirty-four patients were identified: 50% had Stage IA disease, 47% had Stage IB disease, and 3% had Stage IIA disease. The male-to-female ratio was 2:1. Clinical features included hypopigmented lesions (24%), poikiloderma (26%), pilotropic disease (9%), and disease associated with lymphomatoid papulosis (18%). Twenty-eight patients had diagnostic histology, and six patients were included on the basis of compatible histology and a TCR clone in lesional skin. A cytotoxic immunophenotype was observed in 38%, including 71% of patients with hypopigmented lesions. Overall disease-specific survival (DSS) rates at 5 and 10 years were 95% and 93%, respectively. DP rates were 5% at 5 years and 29% at 10 years. Subgroup analysis demonstrated improved DSS and reduced DP in patients with Stage IA disease, those with hypopigmented or poikilodermatous lesions, and those with associated lymphomatoid papulosis. CONCLUSIONS: The prognosis for juvenile-onset MF is similar to that of adult-onset disease. There was an overrepresentation of a cytotoxic phenotype, which was most marked in hypopigmented variants. Widespread cutaneous disease (Stage IB) indicated a less favorable outcome.
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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) | 0.001 | 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 it