A Clinicostatistical Study of 63 Cases with Salivary Gland Tumors

Abstract

A clinical study was performed on sixty-three patients with salivary gland tumors initially diagnosed and treated in the First Department of Oral and Maxillofacial Surgery, Kyushu Dental College Hospital from January, 1994 to December, 2003. The diagnosis of individual tumors was based on the World Health Organization classification.
Tumors were analyzed according to histological type, age, sex, site and size.
1.Benign tumors were observed in 68.3% of cases and malignant tumors were observed in 31.7%.
2.The most common type of tumor was pleomorphic adenoma (49.2%).
3.Pleomorphic adenoma occurred more frequently in female than in male patients. All the patients with Warthin tumors were male.
4.The peak incidence of salivary gland tumors was in the fourth and seventh decades and the average age of the patients was 53.4 years.
5.The incidence of salivary gland tumors was strikingly high in the palate (38.1%). Warthin tumors are almost exclusively located in the parotid gland.
6.The 5-year and 10-year cumulative survival rates were 72.9% for malignant salivary gland tumors.