An Unusual Cause of Dysphagia in a Young Patient: Mediastinal Bronchogenic Cyst
Bibliographic record
Abstract
Bronchogenic cysts are rare congenital foregut malformations that develop due to abnormal budding of the embryonic foregut and tracheobronchial tree. Patients typically present during the second decade of life with respiratory symptoms. We present a 22-year-old patient who presented with dysphagia as initial symptom which is very uncommon. This makes it interesting and misleading as it can initially pursue evaluation for gastrointestinal pathology and cause further delay in reaching the diagnosis. Bronchogenic cysts appear on chest radiograph as round, water-density masses. CT typically shows sharply marginated cystic mediastinal masses of soft tissue. On histologic examination, the cyst is lined by respiratory epithelium with occasional foci of squamous metaplasia. The presence of cartilage plates is the most reliable diagnostic criterion. The management of a bronchogenic cyst consists of surgical excision by video-assisted thoracoscopy (VATS) or thoracotomy. J Med Cases. 2018;9(6):170-172 doi: https://doi.org/10.14740/jmc3053w
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| Bibliometrics | 0.002 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.006 | 0.003 |
| Insufficient payload (model declined to judge) | 0.003 | 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".