Delayed Presentation of Pseudoabscess Secondary to Injection of Pyrolytic Carbon-Coated Beads Bulking Agent
Bibliographic record
Abstract
BACKGROUND: Periurethral masses after injection of Durasphere bulking material have been previously reported to occur within 12 to 18 months of administration of the agent. METHODS: We present a case report of an anterior vaginal wall mass resulting from a pseudoabscess containing Durasphere agent 5 years after injection. A literature review of urethral bulking agent complications and imaging is also provided. RESULTS: The patient's anterior vaginal wall mass was thought to be due to a pseudoabscess secondary to injection of bulking agent. Pelvic imaging was helpful both in identifying the mass and in surgical planning. The patient was successfully treated by outpatient transvaginal resection of the material. CONCLUSIONS: Urethral bulking agents, although generally safe and effective in the treatment of stress urinary incontinence, can lead to formation of pseudoabscesses. Although these are usually recognized within the first 18 months after injection, they may not be identified until several years later.
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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 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.002 |
| Insufficient payload (model declined to judge) | 0.002 | 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".