Vol.97 No.8 contentsPRACTICA OTO-RHINO-LARYNGOLOGICA
Vol. 97 No. 8 August 2004
Parotid Tumor Statistics for the Past Five Years
Soichi Yamaguchi, Kohei Sueno, Takeshi Yamaguchi and Yukimi Asano
(Saitama Red Cross Hospital)
Kazutaka Shiba, Nao Sekiguchi and Takeshi Masuda
(Nihon University School of Medicine)
We reviewed the case of 40 patients with parotid tumor who underwent an operation in the past five years.
Results: The patients included 23 (57.5％) males and 17 (42.5％) females. The average age was 53.4 years old with a range of 19 to 71 years. Thirty eight (95.0％) had benign tumor, and 2 (5.0％) had malignant tumor. Tc scintigraphy was performed in 37 out of the 40 patients, and 9 patients showed positive results. Six patients had warthin's tumor, and 3 had pleomorphic adenoma. In other words, 66.7％ were positive for warthin's tumor. Ga scintigraphy was performed in 31 out of the 40 patients. Nine were positive out of the 10 benign tumor that showed a positive result. None of the cases had permanent facial palsy as a postoperative complication. Transient facial palsy was exhibited by 13 patients (32.5％), but they all improved 2 weeks to 6 months. In addition, we experienced 1 case of salivary fistula.
Discussion: Pleomorphic adenoma was noted in 63.2％, and warthin's tumor in 23.7％. There was no gender difference for pleomorphic adenoma, but 8 out of the 9 patients with warthin's tumor were men. The average age was 47.0 for pleomorphic adenoma and 58.7 for warthin's tumor which was in accordance with conventional reports. The Tc scintigraphy positive rate of warthin's tumor was low, 66.7％, in comparison with that in conventional reports. In addition, 90％ of the tumors that showed positive results in Ga scintigraphy were preoperatively positive tumors, indicating the diagnostic usefulness of this. Transient facial palsy was a complication in 32.5％ of the patients, which was similar to the rate in the conventional report. We experienced 1 case salivary fistula, which did not improve with conservative treatment. We opened the wounded area, and drained it by pressing.
Key words : parotid tumor, statistics, facial palsy