The recurrence of Bowen’s disease after topical 5% 5-fluorouracil cream application: A systematic review
Bibliographic record
Abstract
Background: Bowen’s disease (BD) may develop into cutaneous squamous cell carcinoma (CSCC), which can spread to other parts of the body. 5% 5-fluorouracil (5-FU) cream is commonly used for topical therapy on BD; however, the frequency and duration of treatment per cycle have not been standardized. This systematic review aimed to identify the most effective frequency and duration of 5% 5-FU treatment for achieving complete clearance or minimal recurrence. Methods: A literature search was conducted using three electronic databases (PROSPERO ID: CRD42024607488): MEDLINE, Cochrane, and Scopus. The articles were selected based on their relevance to the clinical question. Appraisals were conducted using the Newcastle-Ottawa Scale and the revised Cochrane risk-of-bias tool for randomized trials. Results: Five selected studies with 550 participants were critically reviewed; two were cohort studies and three were randomized trials. Some patients in total studies used more than one therapy cycle. Four of the five studies showed a recurrence rate in 12 months after the end of treatment. In cohort studies, the recurrence rate was 0–8.3% with twice-daily application for 9–16 weeks, whereas in randomized trials, the recurrence rate was 14.3–27.3% with various application frequencies for 4 weeks. Conclusion: The most suitable duration and frequency of 5% 5-FU cream application per cycle to minimize the recurrence rate of BD is twice daily for four weeks per cycle. However, other factors may affect the recurrence rate.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.004 | 0.001 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 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".