1990 Volume 36 Issue 7 Pages 1730-1737
One hundred and sixty cases of salivary gland tumors histologically diagnosed at the Department of Oral Surgery, Faculty of Dentistry, Kyusyu University during the period from 1966 to 1987 were reviewed and clinically analysed. The results are:
1. They were composed of 70.0% of benign tumors and 30.0% of malignant tumors.
2. Pleomorphic adenoma were most common, which comprised 66.3% of all tumors and 94.6% of benign tumors.
3. Adenoid cystic carcinoma and mucoepidermoid tumor were equally common in malignant tumors. They comprised about 20% of all tumors and more than two thirds of malignant tumors.
4. Benign tumors occurred more frequently in women (66.1%) than men (33.9%) and malignant tumors occurred more frequently in men (54.2%) than women (45.8%).
5. The average age of the patients affected by malignant tumors was higher than that of benign tumors (malignant tumors 53.0 years old, benign tumors 44.9 years old), and benign tumors were distributed evenly in all generation, but most malignant tumors occurred in middle or high generation.
6. They occurred almost equally in major salivary glands (50.6%) and minor salivary glands (49.4%).
7. Palatal gland tumors were most common, and comprised 36.3% of all tumors.
8. The incidence of malignant tumors in minor salivary glands was higher than that of major salivary glands.
