P.025 Magnetic resonance imaging in pediatric recurrent ophthalmoplegic cranial neuropathy
Bibliographic record
Abstract
Background: Recurrent ophthalmoplegic cranial neuropathy (ROCN), previously called ophthalmoplegic migraine, is characterized by recurrent episodes of headache and ophthalmoplegia of unclear etiology. Characteristic neuroimaging findings can support the diagnosis. Methods: A case report and review of the literature. Results: We present a 6-year-old girl with a past history of migraine headaches associated with retroorbital pain since 4 years of age. Family history is positive for migraine. She presented with a half a day history of left eye ptosis, 10 days post a resolved gastroenteritis which was associated with headaches. Examination showed only a left eye ptosis, pupil-sparing with no exotropia or diplopia. There was no headache. The rest of the neurologic examination was normal. Investigations showed normal blood tests and lumbar puncture. MRI head showed on thin cuts asymmetric nodular thickening (4mm) of the origin of the cisternal segment of the left oculomotor nerve, with corresponding homogeneous enhancement post gadolinium infusion. Clinical resolution occurred spontaneously within 48 hours. A review of the literature highlights focal thickening and enhancement of the affected cranial nerve, with resolution of enhancement post-acute phase. Conclusions: Focal thickening and enhancement of affected cranial nerve is seen in the majority of pediatric ROCN. These findings are best seen with thin MRI cuts and gadolinium infusion.
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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 | 0.004 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.004 | 0.007 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.000 |
| Research integrity | 0.000 | 0.002 |
| 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; both teacher heads agree on what is shown here.
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".