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ObjectiveThis study aims at establishing a teaching catalog and content for breast rare diseases and developing the syllabus for the breast rare disease using integrated multimodality of case-/problem-/resource-based learning (CBL+PBL+RBL).MethodsBy conducting bibliometrics co-occurrence analysis, we collected 6291 articles on breast rare disease published from January, 1975 to June, 2024. Additionally, we retrieved the Textbook on Rare Diseases, the Catalog of Chinese Rare Disease, and Second Batch of Rare Disease Catalog and then decided the teaching content.ResultsFrom 16, 387 keywords, 1000 (6.1%) keywords were identified through co-occurrence analysis, including 50(0.3%) candidate diseases. These were classified into three categories: rare primary breast diseases, rare genetic mutation-related diseases associated with breast cancer, and rare systemic multi-system diseases involving the breast. From the candidate list, 20(0.1%) rare primary breast diseases were further selected for their notable clinical teaching significance, and significant multi-systemic diseases affecting the breast, whether related to gene mutations or not. Teaching plans were drafted using a diversified parallel teaching approaches, taking into account the characteristics of different diseases and the focus of different teaching methods.ConclusionsThis study initiated the development of the teaching content for breast rare diseases and developed the teaching syllabus using the CBL+PBL+RBL integrated multi teaching model and targeting each rare breast disease for the critical point for teaching.

Background: Breast cancer has become a critical international healthcare issue. Specifically, among the different subtypes, breast cancer marked by human epidermal growth factor receptor 2 (HER2)-overexpression usually correlates with low survival and a poor prognosis and poses challenges in treatment, thus leading to high mortality., Case Description: A 54-year-old female patient was diagnosed with a large T4cN2aM0 stage IIIB breast tumor with HER2 overexpression. The tumor size was large, and there was a lack of opportunity for surgery. However, after neoadjuvant chemotherapy (NACT), the size of the tumor continuously shrank, and the patient successfully underwent a modified radical mastectomy. Even though a certain amount of mass remained and she did not complete six courses of NACT, our patient's postoperative pathological result still revealed that a pathological complete response (pCR) was achieved. The appropriate time window for choosing surgical intervention should be determined based on the patient's general condition instead of complying with the treatment guidelines. Also, imaging findings may be misleading in patients who have undergone NACT. Moreover, the regimen should be chosen flexibly., Conclusions: Patients with locally advanced breast cancer can still achieve a radical surgical resection following appropriate comprehensive treatment. Hopefully, this case can provide new ideas for surgeons when they face similar conditions., Competing Interests: Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://gs.amegroups.com/article/view/10.21037/gs-24-92/coif). The authors have no conflicts of interest to declare., (2024 Gland Surgery. All rights reserved.)