良性淋巴上皮病变是以腺实质萎缩和淋巴细胞浸润为其特征,伴有实心的上皮和肌上皮细胞岛取代了小叶内导管。一般认为它是一种反应性增生,而不是真性肿瘤,並且可能是自身免疫或类风湿性疾病在涎腺的表现。本病切除后可复发,有变为鳞状细胞 Benign lymphoepithelial lesions are characterized by glandular atrophy and lymphocyte infiltration, with solid epithelium and myoepithelial islands replacing the intralobular catheter. It is generally thought to be a reactive hyperplasia, not a true tumour, and may be an indication of autoimmunity or rheumatoid disease in the parotid gland. After resection of the disease can relapse, have become squamous cells