Lung Cancer‐Like Presentation of Pulmonary Vein Stenosis After Radiofrequency Catheter Ablation for Atrial Fibrillation
Bibliographic record
Abstract
A woman in her 50s presented with a two-month history of haemoptysis, dyspnea, cough and weight loss. She had recently undergone radiofrequency ablation for atrial fibrillation. A computed tomography (CT) scan of her chest showed left upper lobe opacity, mediastinal lymphadenopathy, and left pleural effusion, concerning for malignancy. Bronchoscopy revealed a malignant-appearing lesion that was negative for malignancy on biopsy. Despite improvement of the CT abnormalities and the lesion on a repeat bronchoscopy, she continued to experience recurrent episodes of dyspnea and haemoptysis. A ventilation/perfusion scan showed decreased perfusion to her left lung. A CT pulmonary angiogram with pulmonary vein phase established the diagnosis of pulmonary vein stenosis. This case highlights the necessity of considering pulmonary vein stenosis in patients post-ablation presenting with features suggestive of lung cancer to avoid unnecessary delays in diagnosis and treatment.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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".