Distribution and frequency of salivary gland tumours: an international multicenter study

Author:

Alsanie Ibrahim,Rajab Shahad,Cottom Hannah,Adegun Oluyori,Agarwal Reshma,Jay Amrita,Graham Laura,James Jacqueline,Barrett A William,van Heerden Willie,de Vito Mariano,Canesso Alessandra,Adisa Akinyele Olumuyiwa,Akinshipo Abdul-Warith Olaitan,Ajayi Oluseyi Folake,Nwoga Mark Chukwuemeka,Okwuosa Chukwubuzor Udokwu,Omitola Olufemi Gbenga,Orikpete Efetobo Victor,Soluk-Tekkesin Merva,Bello Ibrahim,Qannam Ahmed,Gonzalez Wilfredo,de Oliveira Maria Eduard Perez,Santos-Silva Alan Roger,Vargas Pablo Agustin,Toh Eu-Wing,Khurram Syed Ali

Abstract

AbstractBackgroundSalivary gland tumours (SGT) are a relatively rare group of neoplasms with a wide range of histopathological appearance and clinical features. To date, most of the epidemiological studies on salivary gland tumours are limited for a variety of reason including being out of date, extrapolated from either a single centre or country studies, or investigating either major or minor glands only.MethodsThis study aimed to mitigate these shortcomings by analysing epidemiological data including demographic, anatomical location and histological diagnoses of SGT from multiple centres across the world. The analysed data included age, gender, location and histological diagnosis from fifteen centres covering the majority of the world health organisation (WHO) geographical regions between 2006 and 2019.ResultsA total of 5798 cases were analysed including 65% benign and 35% malignant tumours. A slight female predilection (54%) and peak incidence between the fourth and seventh decade for both benign and malignant tumours was observed. The majority (69%) of the SGT presented in major and 31% in the minor glands. The parotid gland was the most common location (70%) for benign and minor glands (46%) for malignant tumours. Pleomorphic adenoma (70%), and Warthin’s tumour (17%), were the most common benign tumours whereas mucoepidermoid carcinoma (25%) and adenoid cystic carcinoma (16%) were the most frequent malignant tumours.ConclusionsThis multicentre investigation presents the largest cohort study to date analysing salivary gland tumour data from tertiary centres scattered across the globe. These findings should serve as a baseline for future studies evaluating the epidemiological landscape of these tumours.

Publisher

Cold Spring Harbor Laboratory

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