Twelve cases of benign pleomorphic adenoma originating from minor salivary glands were clinically analized. The results are as follows:

1. Six male and six female patients, ranging in age of 22 to 93 years with an average of 51.5 years age, were seen.

2. The duration of lesions in cases in which patients were aware of a problem ranged from 3 days to 40 years. The chief complaint was swelling of affected regions.

3. The majority of tumors arose in the palate.

4. The tumors were various sizes and shapes; most cases were 20 to 30 mm in diameter, round in shape, elastic hard or soft in consistency, and well circumscribed. Entirely, the covering mucous was normal.

5. In six cases, palatal bone adjacent to tumor was slightly resorbed due to pressure of tumor growth.

6. All of these cases were histologically revealed and various pleomorphic natures were observed; that is adenomatous, tubular, cystic, myxomatous, cartilaginous, without suggestion of malignant transformation.

7. In out clinic, all cases were performed as a resection or enucleation and there were no evidence of recurrences.