Histiocytosis masquerading in the mesentery and pleura
Bibliographic record
Abstract
We present an atypical presentation of Rosai-Dorfman disease (RDD). Due to its overlap with IgG4-related disease (IgG4-RD), this case proved to be a diagnostic dilemma. Our case is an example of the importance of having a broad-based differential and, ultimately, an in-depth histopathological review. Our patient presented with a constellation of symptoms suggestive of an underlying malignancy. He was provisionally diagnosed with peritoneal carcinomatosis of an unknown primary. His initial presentation triggered a series of investigations, surgery and biopsies. Omental biopsy specimens were suggestive of IgG4-RD. Despite appropriate treatment for IgG4-RD, his disease progressed, specifically in the lungs. Pleural biopsies were then collected and assessed alongside the omental biopsies. On review and reassessment, the patient was formally diagnosed with RDD.
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How this classification was reachedexpand
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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".