A Rare Cause of Hydroenphrosis: Case Presentation of an Intrathoracic Herniated Ureter
Bibliographic record
Abstract
Background Thoracic ureteric herniation is an uncommon finding with a varying presentation. Since its first documentation in 1958, few case reports have been published, and there is no consensus on its management. This condition is typically asymptomatic, with most cases identified incidentally from cross-sectional imaging or discovered intra-operatively. As a result of differing presentations and a lack of consensus or evidence of best practice, this rare finding’s management is not defined. This can range from adopting a conservative approach to more invasive measures such as ureteric stenting or pyeloplasty to repair the thoracic hernia. The authors present a case of thoracic ureteric herniation in a 74-year-old male presenting with rightsided abdominal pain. This patient was known to have a diaphragmatic hernia following pulmonary fibrosis investigations and chronic obstructive pulmonary disease (COPD). At presentation, there was acute kidney injury (AKI), and subsequent computed topography (CT) demonstrated right-sided hydronephrosis and perinephric fat stranding. This was caused by ureteric obstruction with a transition point at the site of thoracic herniation. The patient was successfully managed with retrograde ureteric stent insertion. This case report aims to highlight variance in the presentation of ureteric thoracic herniation and discuss management options. There is no consensus on management for this condition and choices dependant on specific symptoms and patient factors to the best of our knowledge.
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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 | 0.005 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.003 | 0.002 |
| Science and technology studies | 0.002 | 0.002 |
| Scholarly communication | 0.002 | 0.003 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.005 | 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".