INTRAORAL SALIVARY GLAND TUMORS: A RETROSPECTIVE STUDY OF 15 YEARS IN A BUCOMAXILLOFACIAL SURGERY SERVICE

Abstract

Objective: To identify the relative frequency and distribution of salivary gland tumors (SGTs) diagnosed at a Oral and Maxillofacial surgery service over a 15-year period. Study design: A retrospective study was carried out by recording the biopsies of SGTs performed in the service, with histopathological analysis, between 2004 and 2018. Results: Among the 2829 biopsies of oral lesions, 27 (0.95%) were SGTs; 18 (66.7%) were benign and 9 (33.3%) were malignant. Females were more affected (74.1%). The mean age ± standard deviation (SD) was 54.3 ± 17.1 years, ranging from 16 to 79 years. The hard palate was the site more affected (66.7%), followed by the soft palate (11.1%). Nine different types of tumors were diagnosed: pleomorphic adenoma (48.2%), adenocarcinoma (14.8%), adenoid cystic carcinoma (7.4%), canalicular adenoma (7.4%), myoepithelioma (7.4%), mucoepidermoid carcinoma (3.7%), basal cell adenoma (3.7%), clear cells carcinoma (3.7%) and ex-pleomorphic adenoma carcinoma (3.7%).Conclusion: These findings suggest that SGTs have a low incidence in the population, and pleomorphic adenoma is the most common type of tumor followed by adenocarcinoma with the hard palate being the more prevalent site. Objective: To identify the relative frequency and distribution of salivary gland tumors (SGTs) diagnosed at a Oral and Maxillofacial surgery service over a 15-year period. Study design: A retrospective study was carried out by recording the biopsies of SGTs performed in the service, with histopathological analysis, between 2004 and 2018. Results: Among the 2829 biopsies of oral lesions, 27 (0.95%) were SGTs; 18 (66.7%) were benign and 9 (33.3%) were malignant. Females were more affected (74.1%). The mean age ± standard deviation (SD) was 54.3 ± 17.1 years, ranging from 16 to 79 years. The hard palate was the site more affected (66.7%), followed by the soft palate (11.1%). Nine different types of tumors were diagnosed: pleomorphic adenoma (48.2%), adenocarcinoma (14.8%), adenoid cystic carcinoma (7.4%), canalicular adenoma (7.4%), myoepithelioma (7.4%), mucoepidermoid carcinoma (3.7%), basal cell adenoma (3.7%), clear cells carcinoma (3.7%) and ex-pleomorphic adenoma carcinoma (3.7%).Conclusion: These findings suggest that SGTs have a low incidence in the population, and pleomorphic adenoma is the most common type of tumor followed by adenocarcinoma with the hard palate being the more prevalent site.