Conclusion The larger pleomorphic adenoma predominantly occur at the parotid,submaxillary gland or palate,while the smaller one at lip,bucca,gingiva,frons and nasolabial sulcus.

结论腮、颌下、是大多形性瘤的好发位,的则易发生在唇、颊、龈、额、鼻唇沟位。