Mixed pathologies mimicking motor neuron disease: a case report and review of the literature
Bibliographic record
Abstract
Amyotrophic lateral sclerosis (ALS) is classified as a motor neuron disease (MND) that can present with both upper and lower motor neuron signs. Concurrent ALS and frontotemporal dementia (FTD) is also a well-known phenomenon. Examples of other primary disorders mimicking ALS or ALS-FTD have been reported in the literature and recognition of these entities is important to ensure proper clinical management. We present here an unusual case of an 86-year-old male patient, clinically diagnosed with ALS and severe cognitive impairment thought to be due to FTD. Postmortem neuropathological examination of his brain and spinal cord did not reveal the typical findings of ALS or FTD. Rather, it revealed multiple non-ALS pathologies including argyrophilic grain disease (AGD), cerebrovascular disease, and Alzheimer's type pathology. This case raises the possibility that mixed pathologies could mimic motor neuron disease.
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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 | 0.001 | 0.006 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.003 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| 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; 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".