The worldwide epidemiology of salivary gland tumors

Irodalmi áttekintés

Abstract

Salivary gland tumors cannot be classified as frequent tumors. That is why worldwide we have relatively only a limited
number of publications on their occurrence. In our article, we tried to collect these studies from different continents so
that we could get a concise, relevant picture of their epidemiology. For our research, we have looked for publications in
PubMed between 1998 and 2018 and we systematized the results. Benign tumors occurred at a higher rate, on average
65,6%, 34,4% of malignancies, except Nigeria and Iran, where malignant tumors were more common. The average age
is 46,8 years, in Europe the age group of 50s, on other continents the age group of 40s is more concerned. The gender
distribution is equal, except in Mexico, Cameroon and Tehran, where female dominance is significant. Most tumors were
localized in the parotid, the most common benign tumor was pleomorphic adenoma, while adenocystic carcinoma and
mucoepidermoid carcinoma ranked first among malignants. Differences in countries around the world can be attributed
to geographical, ethnic and social reasons, and to differences in health administration and registration. Further investigations
are needed to identify the causes more accurately.