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Abstract Background Granulomatous mastitis (GM) is a rare, benign, inflammatory breast disease with an unknown etiology that predominantly affects women of reproductive age. The definitive treatment of GM is currently controversial; an appropriate therapeutic strategy has yet to be identified, and the disease’s high recurrence rate remains. This study aims to determine the recurrence rate for each GM treatment strategy to identify the most appropriate treatment modality. Methods The search for relevant articles was undertaken using three international databases, including Medline, Scopus, and Web of Science. Articles published in English until the end of 2021 evaluating the recurrence rate of GM were included. Using Stata 13.0, the pooled incidence and 95% confidence interval (CI) for the recurrence rate were determined. Results Sixty-five eligible studies were included in our study. The recurrence rates of systemic steroid use, topical steroid use, antibiotic use, methotrexate use, observation, drainage, excision, antibiotic use and surgery, steroid use and surgery, antibiotic and steroid use, methotrexate and steroid use were 24% (95% CI: 21–27%), 11% (95% CI: 6–21%), 18% (95% CI: 14–22%), 13% (95% CI: 7–22%), 11% (95% CI: 7–17%), 65% (95% CI: 50–78%), 13% (95% CI: 10–16%), 23% (95% CI: 14–36%), 7% (95% CI: 5–11%), 11% (95% CI: 6–18%), and 4% (95% CI: 2–8%), respectively. Drainage had the highest recurrence rate, while combined methotrexate and steroid treatment had the lowest rate. Conclusion The optimal treatment strategy for GM depends on the disease’s severity, consequences, and the patient's features. The study results indicate that combination therapy is preferable for minimizing the risk of relapse and reducing treatment complications. |
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