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、、腭部是较大多形性瘤好发部位,而较小发生在唇、颊、龈、额、鼻唇沟部位。