Sjogren′s综合征是一种慢性炎症性疾病,它以泪腺和唾液腺分泌减少为特征。腺体内淋巴细胞和浆细胞的浸润随后导致角膜干燥和口腔干燥(干燥综合征)。另外的症状是鼻炎、咽炎和喉炎性干燥、支气管肺炎、肺纤维化变、雷诺氏病、肌纤维变化等病。由于近一半的患 Sjogren’s syndrome is a chronic inflammatory disease characterized by reduced secretion of lacrimal and salivary glands. Infiltration of lymphocytes and plasma cells in the gland subsequently leads to corneal drying and dry mouth (Sjögren’s syndrome). Other symptoms are rhinitis, pharyngitis and laryngitis, bronchopneumonia, pulmonary fibrosis, Raynaud’s disease, muscle fiber changes and other diseases. Because nearly half of the patients