Clavicle Pseudarthrosis: A Rare Cause of Thoracic Outlet Syndrome
Bibliographic record
Abstract
A 22-year-old man presented with a one year history of rightsided shoulder pain, hand weakness and tingling, and purplish discoloration of the upper extremity upon abduction. He had congenital pseudarthrosis of the right clavicle since childhood. Aside from an obvious deformity characterized by asymmetry of the shoulders and a palpable bony depression over the right clavicle, the patient had been previously asymptomatic. Physical examination revealed the musculoskeletal deformities as described, as well as prominent veins over his right shoulder, arm, and chest. With arm elevation, his right arm became dusky and his radial pulse diminished. Neurologically, the patient had no deficits except for mild weakness (Grade 4+/5) of the ulnarinnervated intrinsic muscles of the right hand. The clinical findings were consistent with a combined neurogenic and vascular form of thoracic outlet syndrome.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.003 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.004 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".