Intermittent self-catheterization and the risk of squamous cell cancer of the bladder: An emerging clinical entity?
Bibliographic record
Abstract
There are only 7 cases reported in the literature of squamous cell cancer of the bladder in patients performing intermittent self-catheterization (ISC). We report on an eighth case, and the first case described in a patient with a Mitrofanoff continent appendicovesicostomy. A description of the case and review of the literature are presented. Risk factors for squamous cell cancer include recurrent urinary tract infections, keratinising squamous metaplasia (leukoplakia) and local mucosal trauma from intermittent self-catheterization. There is no recognized or validated monitoring program for patients performing ISC who may also have these risk factors. Reasonable protocols may include regular urinary cytology and cystoscopy with random or targeted bladder biopsies. Squamous cell cancer may present late in this cohort of patients and is associated with a dismal prognosis.
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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 | 0.000 |
| 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".