患者王某,女,24岁。三年前右腮腺后区出现一枣样大小的无痛性肿块,界清、活动、质硬。曾在汉沽某医院以“右腮腺混合瘤”入院手术治疗,术后病理诊断“良性淋巴上皮病变”。两年前右颈上又出现上述同样大小及硬度的三个肿块。于1989年7月再次在该院手术。术后病理再报“良性淋巴上皮病变”复 Patient Wang, female, 24 years old. Three years ago, there was a jujube-like painless mass in the right parotid region, with clear borders, activities, and stiffness. He was admitted to a hospital in Hangu with a “stomach mixed tumor of the right parotid gland” for surgical treatment and pathological diagnosis of “benign lymphoepithelial lesions.” Two lumps of the same size and hardness were present on the right neck two years ago. In July 1989, surgery was performed at the hospital again. Postoperative pathology reported “benign lymphoepithelial lesions” again