parotid

The parotid gland has many processes,such as duct process,temporal process,inferior process,processus mastoideus, pterygo-mandibular process, parapharyngeal process and tympano-mandibular process.

有许多突起，计有导管突、颞突、下突、乳突突、翼下颌突、下颌鼓突和咽旁间隙突等。

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、颌下、腭大多形性瘤好发位,而小则易发生在唇、颊、龈、额、鼻唇沟位。