A clinico-­statistical study of 46 salivary gland tumors

Abstract

We conducted a clinical analysis of 46 cases involving patients who visited our department in the past 15 years from 2004 to 2018 who were histopathologically diagnosed with salivary gland tumors. We recorded demographic data for the patients, tumor sites, histological type, and treatment modality. The cases comprised 24 males and 22 females, representing a male to female ratio of 1.1:1. The age of the patients at diagnosis ranged from 11 to 84 years with a mean of 47 years. 28 cases were benign tumors(61%), while 18 were malignant (39%). The incidence of benign tumors was greater in males (61%, 17/28) while malignant tumors were more common in females (61%, 17/28). Of the 44 cases, 90% occurred in minor salivary glands. Among them, both benign (20/28) and malignant (9/18) tumors were most common in the palatal glands. Histopathologically, the most frequent type of benign tumor was pleomorphic adenoma (75%, 21 cases), followed by myoepitherioma (18%, 5 cases). On the other hand, the most frequent type of malignant tumor was mucoepidermoid carcinoma (44%, 8 cases), followed by adenoid cystic carcinoma (22%, 4 cases). Both the benign and malignant tumors were treated surgically. Recurrence occurred in 1 case among the 18 patients in the malignant group, while no recurrences were observed among the 28 patients in the benign group. (J Osaka Dent Univ 2020; 54: 219-224)