Although fine-needle aspiration biopsy (FNAB) has been widely accepted as a valuable tool for differential diagnosis of head and neck tumors, the diagnostic value of FNAB in the management of salivary gland tumors has been questioned. This case report presents a patient with mucoepidermoid carcinoma of parotid gland diagnosed as pleomorphic adenoma by FNAB and discusses the pitfalls in the diagnosis of malignant salivary gland tumors.

• 천승우(가톨릭대학교 서울성모병원 구강악안면외과) | Seungwoo Cheon (Department of Oral and Maxillofacial Surgery, Seoul St. Mary’s Hospital, The Catholic University of Korea)
• 이규현(가톨릭대학교 서울성모병원 구강악안면외과) | Kyuhyeon Lee (Department of Oral and Maxillofacial Surgery, Seoul St. Mary’s Hospital, The Catholic University of Korea)
• 백창열(가톨릭대학교 서울성모병원 구강악안면외과) | Chang-Yeol Baek (Department of Oral and Maxillofacial Surgery, Seoul St. Mary’s Hospital, The Catholic University of Korea)
• 김창현(가톨릭대학교 서울성모병원 구강악안면외과) | Chang-Hyen Kim (Department of Oral and Maxillofacial Surgery, Seoul St. Mary’s Hospital, The Catholic University of Korea)
• 이주영(가톨릭대학교 서울성모병원 구강악안면외과) | Ju-Young Lee (Department of Oral and Maxillofacial Surgery, Seoul St. Mary’s Hospital, The Catholic University of Korea) Corresponding author
• 박재억(가톨릭대학교 서울성모병원 구강악안면외과) | Je-Uk Park (Department of Oral and Maxillofacial Surgery, Seoul St. Mary’s Hospital, The Catholic University of Korea) Corresponding author