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하종운 大韓顎顔面成形再建外科學會 1994 Maxillofacial Plastic Reconstructive Surgery Vol.16 No.2
Pleomorphiic adenoma(benign mixed tumor) is the most common tumor of the major salivary glands, constituting approximately 70 per cent of benign tumors of these glands. The term mixed tumor was introduced in the nineteenth century to stress the dual origin of this neoplasm from epithelial and mescenchymal elements, nd the designation pleomorphic adenoma is preferred because it emphasizes both the epithelial origin and the variety of histoological patterns found in this common salivary gland lesion. Rauch, in a review of 4245 pleomorphic adenomas, found 92.5 per cent in the major salivry glands and 6.5 per cent in the minor salivary glands, 8 per cent arose in the submandibular glands, and in another large series of over 6,000 cases, approximately 4 per cent arose in the hard and soft palates with equal frequency in each. The prognosis of pleomorphic denoma depends more upon the choice and adequacy of treatment than upon histologi치 appeances. The accepted treament for this tumor is excision. With adequate surgery recurrence rates of less than 1 per cent can be obtained. In this hospital, I experienced two patients who were identified PMA which occurred in the hard palate and submandibular gland. The lesions were successfully treated by surgery.