Abstract
Between 1995 and 2005, 198 cases of major salivary gland tumors underwent surgery in our department, including 158 parotid gland tumors, 38 submandibular gland tumors and 2 sublingual gland tumors.The number of parotid tumors increased annually, although submandibular gland tumors did not demonstrate any increasing trend.The ratio of malignant tumors among submandibular gland tumors was 24%, which was higher than among parotid tumors (11%). In addition, the ratio of the malignant tumors among submandibular gland tumors in males (42%) was significantly higher than that in females (5%).Fine needle aspiration biopsy was the most useful for diagnosis of the malignant tumors on preoperative examinations.Permanent paralysis of the facial nerve after resection of parotid tumor was 29% in malignant tumors, 6% in benign tumors and 8% among parotid tumors overall. Frey's syndrome was occurred in 12%.
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