Fibrosing Mediastinitis in a 5‐Year‐Old Labrador Retriever
Bibliographic record
Abstract
BACKGROUND: Fibrosing mediastinitis (FM) is a rare but serious condition characterized by excessive fibrous tissue proliferation in the mediastinum, often leading to compression of vital structures. Although considered benign, in people, clinical manifestations of FM can range from asymptomatic incidental findings on imaging studies to severe respiratory compromise and hemodynamic instability. While documented in people, FM has not yet been reported in dogs. CASE PRESENTATION: A 5-year-old male neutered Labrador Retriever presented with progressive respiratory distress, leading to pleural effusion and facial swelling. Thoracic radiographs revealed mediastinal mass-like structures and pleural effusion. Computed tomography demonstrated a mediastinal mass-like structure, enlarged tracheobronchial lymph nodes, multifocal narrowing of lobar bronchi and pulmonary veins and compression of the oesophagus and trachea. The dog was humanely euthanized due to poor response to empiric therapy and the owner's perception of suffering. A post-mortem examination confirmed severe chronic mediastinal inflammation with fibrosis and vasculitis consistent with fibrosing mediastinitis. CONCLUSIONS: This report presents a unique case of FM in a dog.
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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 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.000 |
| 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) | 0.001 | 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".