Descriptive pattern of Benign Salivary Gland Tumours in Jos University Teaching Hospital (JUTH), Jos: A ten-year retrospective study.

Abstract

Salivary gland tumours are common head and neck tumours which account for 2.8 to 10of all head and neck tumours in most African studies and 8.0 to 10.5in most western literature. Benign salivary gland tumours are the commonest form of salivary gland neoplasm; with the ratio of benign to malignant tumours ranging from 1.2:1 to 2:1. Objectives: This study is aimed at describing the histological pattern; age; sex and site distribution of benign salivary gland tumours in Jos University Teaching Hospital from January 1997 to December 2006. Methods: This was a descriptive study of all histotogically confirmed benign salivary gland tumours over a period of ten years. The slides were reported independently by four pathologists. Diagnosis was made and classification done according to the World Health Organization (WHO) classification of salivary gland tumours. Data such as age; sex and site of distribution of these tumours were obtained from the patient's case files. Results: Results show that benign salivary gland tumours had a higher distribution than malignant salivary gland tumours with a ratio of 1.7:1. Of these benign salivary gland tumours; male predominance over females was generally observed. Benign salivary gland tumours occurred more within the age range 4 to 49 years (table 1); with pleomorphic Adenoma accounting for the highest frequency (115) and basal cell adenoma for the lowest frequency (1) [table 2]. Parotid gland was also the commonest site of occurrence of most of these lesions except for basal cell adenoma which was found in the sublingual gland