Langerhans' Cell Histiocytosis in the Paediatric Population: Presentation and Treatment of Head and Neck Manifestationsy
Why this work is in the frame
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Bibliographic record
Abstract
Langerhans' cell histiocytosis (LCH) is a rare paediatric disease of unknown etiology affecting 1 to 5 children per 1 million each year. It is characterized by the idiopathic proliferation of Langerhans' cells. The clinical spectrum of disease is quite varied, ranging from a solitary eosinophilic granuloma to diffuse multisystem involvement. The head and neck is the most common site of involvement, occurring in approximately 60% of LCH patients. Head and neck manifestations are diverse and include skull and temporal bone lesions, cervical lymphadenopathy, and skin rash. Diagnosis can be difficult as these lesions mimic other common conditions seen by the otolaryngologist, including otitis externa, acute mastoiditis, and gingivitis. A retrospective study was carried out to study our centre's experience with LCH over the last 10 years. Twenty-one patients were diagnosed between January 1990 and December 1999. Patient's age at time of diagnosis ranged from 6 days to 14 years. Fifty-seven percent of patients had localized bony lesions; the remaining 43% had diffuse multisystem disease. The head and neck was also the most commonly involved site in our study, affecting 67% of our patients. Presentation and diagnosis of these lesions are discussed in detail. Treatment, complications, and patient outcomes will also be discussed.
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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