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The author studied on the 197 cases of the pleomorphic adenoma which had been diagnosed with biopsy during the period of 1985 to 1996 at the Kyungpook National University Hospital. This study contains the statistical analysis of the clinico-pathological findings such as sex, age, location, chief complaint, duration, treatment method, size, recurrence, and treatment department in relation to anatomical location. The result were as follows : 1. The treatment department in oxter were ENT(16.2%), GS(22.8%), OMFS(18.8%), PS(12.2%). 2. The incidence of pleomorphic adenoma were parotid gland(57.8%), palatal salivary gland(20.3%), submandibular gland(17.2%), other minor salivary glands(4.5%). 3. The tumors were more common in females than males, with a male to female ratio of 1 : 1.85. 4. The peak age of ocurrence was in the forth decade. 5. The duration of the most cases were less than 5 years. 6. Although the size of the tumors was variable, the incidence was highest between 3cm and 4cm(25.4%). 7. The most prevalent chief complaint was swelling(94.9%). 8. Conservative treatment was performed 30.0%, and radical treatment was employed 70.0%. 9. The recurrence rate is 8.1%, and recurrence used to be relatively common with conservative treatment. 10. The rate of malignant transformation is 1%. 11. The anatomical location has no relationship with the factors of sex, duration, and malignant transformation. 12. There was statistical significance on the anatomical location to the treatment department, age, chief complaint, size, treatment method, recurrence (P<0.05).
Adenoma, Pleomorphic* ; Biopsy ; Female ; Gyeongsangbuk-do ; Humans ; Incidence ; Male ; Recurrence

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