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Mammary metaplastic squamous cell carcinoma: a case report
Yang Tianqing1, Zhong Guoliang1, Lin Shuqi1
1Guangdong Medical University, Zhanjiang, Guangdong, China.
Journal of Medical Case Reports
|February 7, 2026
Summary
Mammary metaplastic squamous cell carcinoma, a rare triple-negative breast cancer, can mimic abscesses, delaying diagnosis. This case shows potential acquired resistance to chemotherapy and suggests adjuvant capecitabine may benefit high-risk patients.
Area of Science:
- Oncology
- Breast Cancer Research
- Pathology
Background:
- Mammary metaplastic squamous cell carcinoma (MMSC) is a rare, aggressive triple-negative breast cancer.
- MMSC often presents as a diagnostic challenge due to its resemblance to benign breast abscesses, leading to delayed treatment.
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