Features of Parotid Gland Diseases and Surgical Results in Southern Taiwan》.pdf

FEATURES OF PAROTID GLAND DISEASES AND SURGICAL RESULTS IN SOUTHERN TAIWAN Wen-Hsiang Chan,1 Ka-Wo Lee,1,2 Feng-Yu Chiang,1,2 Kuen-Yao Ho,1,2 Chee-Yin Chai,3 and Wen-Rei Kuo1,2 Departments of 1Otolaryngology—Head and Neck Surgery and 3Pathology, Kaohsiung Medical University Hospital, and 2Department of Otolaryngology—Head and Neck Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. Various parotid gland diseases are seen clinically, including inflammation, sialolithiasis, and benign and malignant tumors. It is important to differentiate between these to make a correct diagnosis and for proper management. Here, we investigated the relationship between tumor characteristics and pathology, and considered whether the former could be used to differentiate malignant from benign parotid gland diseases. We retrospectively reviewed the charts and data of 316 patients who underwent surgery in Kaohsiung Medical University Chung-Ho Memorial Hospital from January 1, 1998 to December 31, 2008. Two hundred and eighty-one patients (88.9%) had benign disease, and 35 (11.1%) had malignant disease. The most common benign dis- ease was pleomorphic adenoma (115 cases, 36.4%), but the most common disease in male patients was Warthin’s tumor, a finding which, as far as we aware, has not been previously been reported in the literature. The incidence of Warthin’s tumor seems to be increasing. In malignant disease, the most common was acinic cell carcinoma (8 cases, 22.9%). Compared with benign dis- ease, malignant parotid gland disease more often presents as a hard, painful, fixed and large