Teaching NeuroImage: Hyperglycemia-Induced Occipital Lobe Seizures
Bibliographic record
Abstract
A 64-year-old man was admitted with right-sided headache and confusion.He experienced episodes of left-sided flashing lights evolving to left-beating nystagmus with impaired awareness, suggesting right occipital lobe-onset seizures, for which levetiracetam was prescribed.Between episodes, he had left homonymous hemianopia.Brain MRI showed right occipital lobe swelling with cortical T2-fluid-attenuated inversion recovery (FLAIR) hyperintensity and diffusion restriction (Figure).Blood glucose on admission was 21.8 mmol/L (normal: 3.4-11 mmol/L) and HbA1C was 12.8%, indicating a new diagnosis of diabetes mellitus and raising concern for hyperglycemia-induced occipital lobe seizures. 1,2Testing for alternative etiologies including CSF bacterial culture, viral PCRs, cytology, and autoimmune encephalitis antibodies, as well as serum anti-myelin oligodendrocyte glycoprotein (MOG), was negative.After blood glucose normalization, his symptoms resolved.Repeat brain MRI 8 weeks later was unremarkable (Figure).Occipital lobe seizures are a rare but characteristic manifestation of hyperglycemia.Glycemic control generally results in their resolution, emphasizing the importance of prompt diagnosis. 1,
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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 | 0.000 |
| 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 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 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".