Carcinoma ex pleomorphic adenoma (Ca ex PA) is an uncommon malignant tumor. It is an aggressive salivary carcinoma, arising from a primary or recurrent benign pleomorphic adenoma (PA). The most common clinical presentation of Ca ex PA is a firm mass in the parotid gland. Here we report a case of Ca ex PA, arising from a recurrent benign PA in the right parotid gland, in a 70-year old female patient. The lesion was first diagnosed as a PA and a superficial parotidectomy was performed. Re-operation was performed for recurrent PA. The second recurrence was diagnosed as Ca ex PA.

• 장성백(경북대학교 치의학전문대학원 구강악안면외과학교실) | Seong-Baek Jang (Department of Oral & Maxillofacial Surgery)
• 김도형(경북대학교 치의학전문대학원 구강악안면외과학교실) | Do-Hyoung Kim (Department of Oral & Maxillofacial Surgery)
• 이성탁(경북대학교 치의학전문대학원 구강악안면외과학교실) | Sung-Tak Lee (Department of Oral & Maxillofacial Surgery)
• 권대근(경북대학교 치의학전문대학원 구강악안면외과학교실) | Tae-Geon Kwon (Department of Oral & Maxillofacial Surgery)
• 최소영(경북대학교 치의학전문대학원 구강악안면외과학교실) | So-Young Choi Corresponding author
• 신홍인(구강병리학교실) | Hong-In Shin (Department of Oral Pathology, School of Dentistry, Kyungpook National University)