OTHER-11 DEMENTIA AND EPILEPSY REVERSED SUCCESSFULLY THROUGH STAGED EMBOLISATION OF A SYMPTOMATIC HYPERVASCULAR PARAGANGLIOMA : A CASE REPORT
Bibliographic record
Abstract
Abstract INTRODUCTION Paragangliomas (PGs) are rare neuroendocrine tumours that can arise from parasympathetic glossopharyngeal and vagus nerves. Atypical presentations involving seizures and dementia can occur due to excessive catecholamine release. Physiological intracranial arteriovenous fistulae (AVF) can occur concurrently due to increased vascularity, especially in the cavernous and sigmoid sinuses. METHODS We present a case of a patient who developed a highly vascular AVF from an ipsilateral glomus jugulare PG, presenting with rapidly progressive but reversible dementia and epilepsy. CASE: A 64-year-old lady presented on several occasions with new-onset stereotyped episodes of confusional dysphasia suggestive of seizures, confirmed on electroencephalography. Further history revealed two years of progressive deafness and imbalance, and one year of increasing forgetfulness and executive dysfunction, which had deteriorated rapidly in the period of the patient's current presentations. Montreal cognitive assessment (MoCA) score was 21/30 at baseline (normal score >25/30), and she had no lateralising signs. Serial brain magnetic resonance imaging (MRI) revealed progressively worsening vasculopathic white matter hyper-intensities (WMHs). Eventual MR angiography showed a 14x22×23mm right glomus jugulotympanicum PG with numerous feeding arteries, and associated multiple AVFs (Cognard grade III). She was initially managed with anti-seizure medications and then discussed in our multidisciplinary neurosciences meeting. The patient underwent staged right glomus jugulare embolization over several weeks. Her cognitive function gradually improved, and at three months she had fully returned to normal functioning with a MoCA of 30/30 and no residual neurological deficit. The WMHs disappeared on follow-up MRI scans. CONCLUSION Our case highlights a rare clinical presentation of dementia and seizures from a right glomus jugulare PG with associated AVF. Multidisciplinary involvement was key in excluding other causes, and definitive treatment of the PG led to complete reversal of the patient’s dementia.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| 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 | 0.003 | 0.002 |
| Insufficient payload (model declined to judge) | 0.001 | 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".