患者女,65岁。于3年前无明显诱因发现右侧下颌有一大豆大小肿物,无疼痛等不适症状,就诊当地医院给予消炎等治疗,肿物无明显变化后患者未再做任何治疗。近1年肿物增大,偶有轻微的疼痛,无其他不适,在当地医院给予消炎等治疗后无明显缓解,赴兰大一院就诊。入院查体:各项生命体征平稳,患者颌面部基本对称,双侧腮腺无肿大。右侧颌下腺 Female patient, 65 years old. Three years ago, there was no obvious incentive to find the right side of the mandible with a soybean-sized tumor with no symptoms of pain and other symptoms. Visit the local hospital for anti-inflammatory treatment, and no significant change in the patient after the patient did not do any treatment. Nearly 1 years of tumor enlargement, occasional minor pain, no other discomfort, in the local hospital to give anti-inflammatory treatment was no significant relief, go to the first hospital of Lancun. Admission examination: all the vital signs stable, maxillofacial symmetry in patients with bilateral parotid gland enlargement. Right submandibular gland