Burosumab treatment of tumour-induced osteomalacia from a rib lesion
Bibliographic record
Abstract
Tumour-induced osteomalacia (TIO) is a rare cause of acquired hypophosphataemia most often due to paraneoplastic overproduction of fibroblast growth factor-23 (FGF-23). A woman in her 60s presented with an 18 month history of insidious back, knee and ankle pain, and progressive weakness. Biochemistry revealed low serum phosphate and a bone scan showed diffuse bony lesions, initially suspected to be metastatic sarcoma given her history of uterine sarcoma. However, a positron emission tomography scan identified a solitary destructive lytic lesion in the right posterior second rib. Endocrine workup showed low serum phosphate, high fractional excretion of phosphate, normal 25-hydroxyvitamin D and elevated FGF-23 levels. A biopsy revealed spindle cell neoplasm, which later stained positive for FGF receptor 1, consistent with renal phosphate wasting secondary to TIO. The patient was started on burosumab, a human monoclonal antibody against FGF-23, which normalised her serum phosphate and led to marked clinical improvement. She is now awaiting curative surgery for the primary rib lesion.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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".