Salivary gland tumors: a 15-year experience of a universıty hospital in Turkey (original) (raw)

Abstract

T he salivary glands consist of three major glands as parotid, submandibular and sublingual glands and hundreds of minor glands, which are diffusely located in the beginning part of the respiratory system. Tumors of the salivary glands are rarely encountered. However, they appear with different histopathological characters. Different biological behaviors can be observed even in neoplasms defined by the same name. In the latest classification made by the World Health Organization (WHO) in 2017, salivary gland tumors were classified into more than 30 benign and malignant histologic subtypes [1]. This wide histopathological spectrum and significant differences in prognosis between them distinguish salivary gland tumors from other organ neoplasms. Salivary gland tumors account for approximately 3-4% of all head and neck tumors [2]. Their inci-ABSTRACT OBJECTIVE: To determine the demographic characteristics of benign and malignant salivary gland tumors in our department in the last 15 years. METHODS: In this study, the files of the patients who underwent salivary gland surgery between 2004 and 2019 in our department were analyzed retrospectively. A total of 366 patients whose diagnoses of salivary gland tumor histopathologically confirmed were included in this study. The demographic data of the patients and tumor localizations were recorded, and their relationships with histopathological results were examined. RESULTS: Of the 366 tumors, 292 (80%) of them was originated from the parotid gland, 52 (14%) from the submandibular gland, and 22 (6%) from the minor salivary gland. The male: female ratio was found as 1.2:1, and the mean age of the patients was 50.37 years. A total of 259 (70.8%) tumors were benign, and 107 (29.2%) were malignant. The most frequent benign tumor was pleomorphic adenoma, with 121 cases (46.7%). While pleomorphic adenomas constituted the majority of the benign tumors of the submandibular gland and minor salivary glands, Warthin tumor was detected more than pleomorphic adenoma in the parotid gland. The most common malignant tumor was mucoepidermoid carcinoma, with 26 cases (24.3%). CONCLUSION: The distribution of the salivary gland tumors detected in our department was found to be substantially similar to other worldwide series. Unlike the literature, we concluded that salivary gland tumors were seen slightly more in males, minor salivary gland tumors were relatively rare and Warthin tumors were more frequently detected in our region.

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