Giant Parotid Carcinosarcoma Arising in a Pleomorphic Adenoma: Facial Nerve Preservation by Retrograde Dissection:

[摘要] True mixed malignant tumors (carcinosarcomas) account for an extremely small proportion of salivary malignancies and are marked by aggressive growth rates, frequent local recurrence, and distant metastases. We report a case of 1 such tumor arising from a biopsy-proven pleomorphic adenoma, which was treated with surgical resection, free flap reconstruction, and adjuvant radiation therapy.

[学科分类] 外科医学

[关键词] salivary gl;tumors;true mixed malignant tumors;carcinosarcoma ex pleomorphic adenoma;facial nerve dissection;retrograde dissection