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Abstract


INTERNATIONAL DENTAL JOURNAL OF STUDENTS RESEARCH - VOLUME 1 ISSUE 3, Oct-Jan 2013

Pages: 19-23

SALIVARY GLAND TUMORS: A RETROSPECTIVE STUDY OF 339 CASES IN AN IRANIAN POPULATION FROM 1986 TO 2006

Author: Zahra Chinipardaz, Maryam Khalili, Fatemeh Abouzeid

Category: Case Report

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Abstract:

Introduction: Tumors of the salivary glands are relatively rare, comprising less than 3-6% of all head and neck tumors. Epidemiological data of these tumors in the various parts of the world can be helpful for a better understanding of their biology and clinical characteristics. In Iran, there are few significant epidemiological studies of large series of benign and malignant salivary gland tumors.

Aim: The purpose of the present study is to evaluate the relative frequency and distribution of benign and malignant tumors in the archive of Department of pathology, Cancer Institute of Imam Khomeini Hospital.

Materials and Methods: In this retrospective study, the archive of Cancer Institute of Imam Khomeini Hospital from 1986 to 2006 was the source of the data collection. Information on type of tumors, location as well as patient age and sex were retrieved from pathological and medical reports. Data were analyzed by SPSS package.

Results: Among 85317 patients in the 20 years period of study, 399 were diagnosed with salivary gland tumors (46% of all reported cases). There were 217 males (54.4%) and 182 females (45.6%) with median age 44.7±18.4 years and range of 3-90 years. 54.8% of all cases were benign (n= 219) and 45.2% were malignant (n= 180). Pleomorphic adenoma was the most common type of benign tumor identified with male to female ratio 1: 1.4 whereas Adenoid Cystic Carcinoma was the most common malignant tumor with male to female ratio being 1: 0.8. The Parotid gland was the most affected site and the minor salivary glands were the second site. Most of minor salivary glands tumors occurred in the palate.

Discussion and Conclusion: The data presented in this study are very similar to those of other published research studies. We concluded that the incidence of salivary gland neoplasms in this study is in accordance with the incidence observed in several other studies worldwide. However, prospective studies with adequate follow up are required to a better understanding of salivary gland neoplasms.

Keywords: Salivary gland, Neoplasm, Benign, Malignant

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