A Case of Huge Pleomorphic Adenoma with Skin Invasion in the Parotid Gland

Korean Journal of Head & Neck Oncology 2003;19(2):170-174.
Published online November 30, 2003.

Jin Gyu Park;Jong Dae Lee;Jae Hyung Lee;Jae Hong Park;Yong Man Lee;Kye Won Kwon;Yoon Woo Koh

이하선에 발생한 피부침습을 동반한 거대 다형성선종 1예

박진규;이종대;이재형;박재홍;이용만;권계원;고윤우

Abstract

Pleomorphic adenoma is the most common benign tumor in the parotid gland and a parotidectomy with preservation of the facial nerve is a widely accepted treatment. We experienced a case of huge pleomorphic adenoma arising in the parotid gland with suspicious skin invasion. This present case was 67-year-old male presenting huge parotid mass (12×7) that has been present for 30 years and this tumor showed rapid-growing nature recently. The overlying skin surface was ulcerated with serous discharge and tightly adherent to the mass. The risk of malignant transformation of a pleomorphic adenoma increases with the duration of disease. The preoperative tentative diagnosis was carcinoma ex pleomorphic adenoma in the parotid gland. The initial pathologic diagnosis of fine needle aspiration biopsy was unsatisfactory smear. After parotidectomy, the histologic examination revealed that the parotid tumor was benign pleomorphic adenoma. We present a case of huge pleomorphic adenoma with skin invasion in the parotid gland with review of literatures.

Key Words: Pleomorphic adenoma, Parotid gland