An Interesting Case of Nuchal Rigidity
Bibliographic record
Abstract
A 34 year-old female without prior relevant medical history presented to our emergency room with a two-day history of neck pain, odynophagia and elevated body temperature up to 38.2° C. Her general practitioner had started the patient on antibiotic treatment with ciprofloxacin and referred her to our emergency department for further diagnostic workup and treatment of suspected meningitis. Initial neurological examination revealed neck rigidity and head pain without further focal neurological signs. Body temperature was 37.7 °C, blood analyses revealed a normal leukocyte count (8.900/μl) and normal C-reactive protein (<0.3mg/dl), blood cultures were sterile. Lumbar puncture was without pathological findings (<1 leukocytes/μl, normal levels for glucose, lactate and protein). Cervical magnetic resonance imaging could rule out osseous injury and cervical myelopathy, however a small prevertebral, retropharyngeal fluid collection was visible (Figure 1a-c). This prompted the diagnosis of acute retropharyngeal calcific tendinitis (RCT). This diagnosis was confirmed by conventional x-ray showing the presence of a characteristic amorphous calcification in the retropharyngeal space anterior to the C1-C2 segments (Figure 1d). Treatment with i.v. methylprednisolone (250mg) was started and pain was reduced shortly after the first infusion. The patient was discharged on tapered oral methylprednisolone and non-steroidal anti-inflammatory drug (NSAID) treatment. Symptoms resolved completely within a week.
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.004 | 0.003 |
| 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".