A rare primary cutaneous myoepithelial carcinoma in the axilla accompanied by lymph node metastasis: A case report

• Published in: Cancer innovation (Print) Vol. 4; no. 1; pp. e157 - n/a
• Main Authors: Zhu, Xudong, Li, Shenglong
• Format: Journal Article
• Language: English
• Published: England John Wiley and Sons Inc 01.02.2025; Wiley
• Subjects: axilla; Case Report; cytokeratin; lymph node metastasisp; primary cutaneous myoepithelial carcinoma; smooth muscle actin; primary cutaneous myoepithelial carcinoma; cytokeratin; lymph node metastasisp; axilla; smooth muscle actin
• ISSN: 2770-9191; 2770-9183; 2770-9183
• DOI: 10.1002/cai2.157

Primary cutaneous myoepithelial carcinoma is an extremely rare tumor, and to the best of our knowledge, it has never been reported to occur in the axilla. Furthermore, the pathological and clinical factors of cutaneous myoepithelial carcinoma are poorly understood and may considerably affect prognosis and treatment. Here, we report a case of a 44‐year‐old male patient who was diagnosed with primary cutaneous myoepithelial carcinoma in the axilla accompanied by extensive lymph node metastasis. After an enlarged resection of the left axillary mass, axillary lymph node dissection, and the administration of postoperative chemotherapy and local radiotherapy, there were no signs of tumor recurrence or metastasis. At the time of manuscript preparation, the patient was recurrence‐free. This case may contribute to the clinical management, diagnosis, and treatment of primary cutaneous myoepithelial carcinoma. Primary cutaneous myoepithelial carcinoma is an extremely rare tumor and has never been reported to occur in the axilla. Furthermore, cutaneous myoepithelial carcinoma is uncommon, so its pathological and clinical factors are poorly understood and may considerately affect prognosis and treatment. Herein, we reported a case of a 44‐year‐old male patient who was diagnosed with primary cutaneous myoepithelial carcinoma in the axilla and was accompanied by extensive lymph node metastasis. Furthermore, after an enlarged resection of the left axillary mass, axillary lymph node dissection, and the administration of postoperative chemotherapy and local radiotherapy, there were no signs of tumor recurrence or metastasis. This case may be used by clinicians and may contribute to the clinical management, diagnosis, and treatment of primary cutaneous myoepithelial carcinoma, as our patient is still recurrence‐free.