Vol.101 No.2 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 101 No. 2 February 2008
A Clinical Study of 198 Cases of Major Salivary Gland Tumors
Tsuneo Inoue, Tomonori Eguchi, Shintaro Yamaguchi,
Akiko Tokumaru, Shigenori Ohde and Kensuke Watanabe
(Dokkyo Medical University Koshigaya Hospital)
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％.
Key words :major salivary gland tumors, clinical statistical study, postoperative complications