Teflon Injections (STING) Mimicking Distal Ureteric Stones
Bibliographic record
Abstract
This case report highlights the potential diagnostic pitfalls associated with subureteral transurethral injection (STING) of non-biodegradable materials like Teflon, which has been utilised for endoscopic correction of vesicoureteral reflux (VUR). A 27-year-old female with a history of VUR presented with left-sided loin pain, vomiting, and dysuria, which were initially thought to be due to distal ureteric stones. However, noncontrast computed tomography (CT) revealed the presence of calcific densities in the region of the distal ureter and vesicoureteric junction (VUJ) bilaterally, likely as a sequelae of previous Teflon injection treatment. A conservative management approach was undertaken, and follow-up evaluations, including MAG3 renograms, showed normal drainage and stable split renal function. This case emphasises the importance of a comprehensive medical history and vigilance in avoiding unnecessary imaging or surgical interventions for patients with a previous history of STING.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".