Intradural Metastasis from Cutaneous Squamous Cell Carcinoma Causing Cauda Equina Syndrome
Bibliographic record
Abstract
BACKGROUND: Spinal leptomeningeal carcinomatosis from a cutaneous squamous cell carcinoma \n(SCC) origin is exceedingly rare. Herein, we describe the first report of cauda equina syndrome \nsecondary to drop metastases from a skin SCC. CASE DESCRIPTION: A 69-year-old male with a history of recurrent SCC of the face with known \ncranial nerve involvement presented with acute onset sphincter and lower extremity \nsymptoms. Neuroimaging revealed a compressive intradural mass at the lumbosacral junction. \nThe patient underwent urgent surgical decompression followed by adjuvant fractionated \nradiotherapy. Substantial improvement in function and quality of life was reported on \npostoperative follow-up. CONCLUSION: Cauda equina syndrome manifestations in a patient with a history of cutaneous SCC with perineural spread should raise suspicion for drop metastases. In this case, a relatively \nstraight forward surgical procedure resulted in significant improvement in the quality of life. \nTherefore, operative intervention should be considered to prevent permanent neurological \ndeficits depending on the patient’s goals of care and overall clinical status.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.003 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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".