[Epidemiological evaluation of salivary gland tumors in the Wrocław ENT Department patients in the years 2001-2010].

UNLABELLED: Salivary gland tumors represents approximately 3% of all head and neck neoplasms. Most of them are benign and located in the parotid gland.

AIM: Epidemologic analysis of salivary gland neoplasms in the Wrocław ENT Department.

MATERIAL AND

METHODS

304 patients (170 women, 134 men) with histologically confirmed salivary gland tumors treated in the years 2001-2010 were reviewed retrospectively.

RESULTS

Benign tumors were diagnosed in 83.9% of patients, malignant lesions constituted 16.1% of cases. The average age of patients were 55 years. Pleomorphic adenoma and Warthin's tumor constituted the most common benign tumor (93.3%). Among malignant tumors--adenoid cystic carcinoma (24.5%) and adenocarcinoma (22.5%) were the most frequent. Neoplasms located in submandibular gland and in minor salivary gland in the vast majority of cases were malignat: 35.1% and 38.9%, respectively. Parotid gland tumors were malignant in 11.7%. An increase of salivary gland neoplasms total number, predominantly in men, and in malignant neoplasms percentage: from 13.8% in the years 2001-2005 to 17.7% in the years 2006-2010, was noted.

CONCLUSIONS

Most of salivary gland neoplasms are benign. Pleomorphic adenoma and Warthin's tumor (93.3%) constituted the most common benign tumors, adenoid cystic carcinoma (24.5%) and adenocarcinoma (22.5%) were the most frequent malignant tumors. Malignant tumor patients were avereage 12.5 years older than benign tumors persons. More than 1/3 of submandibular gland and minor salivary glands neoplasms were malignant. An increase of malignant lesions was noted--from 13.8% to 17.7% of the total number of salivary gland neoplasms.