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KMID : 0988420020140030197
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Journal of Dental Science (C.N.U.)
2002 Volume.14 No. 3 p.197 ~ p.206
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A Clinical Study on the Parotid Gland Tumors
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Park Hong-Ju
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Abstract
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This is a clinical study on 113 patients, who were treated for parotid tumors at Chonnam National University Hospital over a period of 5 years from January 1996 to December 2000. The results were as follow,
1. The mean ages were 42.6 years old (12~73 years) for benign parotid tumor patients and 43.9 years old (2~74 years) for malignant patients.
2. The ratio of male to female was 1:2 in malignant parotid tumors, but there was no difference in sex distribution of benign tumor.
3. There was no difference in mean mass size and duration of illness between benign and nalignant tumor patients.
4. The combined use of fine needle aspiration biopsy and computed tomograph was common as the diagnostic method of parotid tumor
5. The parotid tumors were commonly located in the superficial lobe(69%).
6. The ratio of benign and malignant tumors was 4:1. The most common benign tumor was pleomorphic adenoma (72% of benign tumor), followed by Warthin´s tumor and monomorphic adenoma. The most common malignant tumor was rnucoeplderrnoid carcinoma(45% of malignant tumor). followed by adenoid cystic carnoma. carcinoma ex pleomorphic adenoma, and adenocarcinoma.
7. The most common operations were superficial parotidectomy (72%) for benign parotid tumor and total parotidectomy (45%) for malignant tumor
8. The most common postoperative complication was temporary facial nerve weakness (82%), followed by Frey´s syndrome (14%) and permanent facial palsy (4%).
9. Postoperative radiation therapy was done in 12 patients and the mean radiation dose was 5550±620cGy.
10. Of 113 cases. tumor recurrence developed in 12 cases (10%).
These results suggest that the successful management of parotid gland tumors needs adequate surgical treatment on the basis of knowledge of parotid gland anatomy and preoperative diagnosis.
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