Synovial Chondromatosis in the Metacarpophalangeal Joint
Bibliographic record
Abstract
Synovial chondromatosis (SC) is a benign proliferative metaplasia of joint synovium into cartilaginous tissue. The relative scarcity of presentation in the wrist or hands contributes to the difficulties in accurately diagnosing and obtaining the necessary treatment for SC. We present a 43-year-old man with a 10-month history of stiffness and decreased range of motion of his right first metacarpophalangeal (MCP) joint. On examination, a firm mass was palpated surrounding his MCP joint. X-rays showed only a joint effusion. Subsequent magnetic resonance imaging (MRI) showed an effusion, high signal intensity joint distension, and small erosions. Surgical exploration and complete synovectomy with excision of loose bodies was performed. The pathological diagnosis, based on the clinical examination as well as MRI, was consistent with that of tenosynovial chondromatosis. This case illustrates surgical exploration and pathological investigations may be necessary for SC diagnosis. The literature was reviewed for greater understanding of SC’s presentation, diagnosis, and treatment.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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".