Anorectal benign disease
- Examination of 93 cases of perianal warts and suggestion of a new classification
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Jo Unotoro, Keigo Matsuo, Takehiro Arai, Shigeru Okada, Teruki Kawanishi, Ryoichi Ikegami, Shuzo Mori, Hiroshi Matsuno
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Ann Coloproctol. 2023;39(3):242-249. Published online March 17, 2022
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DOI: https://doi.org/10.3393/ac.2021.00969.0138
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 Abstract
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- Purpose
The anatomical distribution of perianal warts is associated with patient characteristics such as sexual orientation. The purpose of this study is to confirm this experiential knowledge using a quantitative classification system and analysis and to obtain findings useful for future treatment.
Methods
From January 2014 to December 2020, 93 patients with perianal warts presented to our hospital. Patients were analyzed for age, sex, lesion site, and recurrence type, among other factors. The lesion site was divided into skin (S) and anal epithelium (anoderm, A), and the number and degree of each were classified into grades 0 to 3. The higher grade between S and A determines its dominant type, such as type S (e.g., S3A1) and type A (e.g., S0A2).
Results
The average age of the patients was 39.6 years, and the percentage of patients who were not married was 54.8%. In all, 95.8% of patients were positive for low-risk human papillomavirus (HPV). Type S accounted for 80.6%, whereas type A accounted for 9.7%. Type A cases were all male and were all presumed to be men who have sex with men (MSM). This indicates that the determination of type A may be highly specific for MSM. The type at the time of recurrence was the same type at the time of the first surgery in almost all cases.
Conclusion
In cases of perianal warts, it is useful to analyze the lesion by considering the range and grade separately for daily clinical practice on proctologist.
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Citations
Citations to this article as recorded by  - Clinical efficacy of CO2 laser combined with 5-aminolevulinic acid photodynamic therapy in treating periungual and plantar warts
Yuanyuan Li
American Journal of Translational Research.2024; 16(12): 7364. CrossRef
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