Two concurrent embryonal rhabdomyosarcomas of the oesophageal and perilaryngeal tissue in an adult dog: imaging, cytological and histological features
Bibliographic record
Abstract
SUMMARY A five‐year‐old neutered male Labrador Retriever was presented for recurring severe dyspnoeic episodes. Oral examination performed under sedation revealed a mass originating from the left arytenoid. CT highlighted a large perilaryngeal soft‐tissue mass abutting the oesophagus, with a small intralaryngeal component. The mass created a narrowing of the laryngeal lumen and displaced the cranial cervical oesophagus dorsally and to the right. CT also highlighted a second smaller mass rostrally at the level of an oesophageal outpouching, narrowing the caudal aspect of the nasopharynx. The perilaryngeal mass was aspirated under ultrasound guidance. Cytology was suggestive of a tumour arising from skeletal muscle and a rhabdomyosarcoma was suspected. Due to poor prognosis, the patient was euthanased. Postmortem examination confirmed two masses affecting the cranial cervical oesophagus, one of which also invaded the perilaryngeal tissue. Histology and immunohistochemistry provided a final diagnosis of two concurrent oesophageal and perilaryngeal embryonal rhabdomyosarcomas.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 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 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".