近年来由于结缔组织病的病例日渐增多,由于诊断技术的进步以及临床医师对本病的高度警惕和关心,因此随着发现病例增多外,并报道了结缔组织病之间的移行,合并,重叠和不完全等等的病例,这些病例用传统的诊断标准和分类方法已无法得出确切的诊断。因此在这些风湿性疾病综合征的各自诊断的病名基础上给予一名称,称之为“重叠综合征”。在风湿性疾病中有系统性红斑狼疮(SLE),进行性泛发性硬化症(PSS)、类风湿性关节炎(RA)、多发性肌炎,风湿热、结节性多动脉炎、干燥综合征(SJS)等。在前6种风湿病中不能以一种疾病诊断,而有二种或二种以上的疾病合并存在的,可以重叠综合征的名称称之。除结缔组织病外,类似的边缘性疾病或自体免疫性疾病 In recent years, due to the increasing number of cases of connective tissue disease, due to the progress of diagnostic techniques and clinicians highly vigilant and concerned about the disease, so as more cases were found, and reported the connective tissue disease between the migration, merger, overlap And incomplete cases, the exact diagnosis of these cases has not been possible with traditional diagnostic criteria and classification methods. Therefore, in the diagnosis of these rheumatic diseases on the basis of the disease name given a name, called “overlapping syndrome.” Among the rheumatic diseases are systemic lupus erythematosus (SLE), progressive generalized sclerosis (PSS), rheumatoid arthritis (RA), polymyositis, rheumatic fever, polyarteritis nodosa, Syndrome (SJS) and so on. In the first six kinds of rheumatism can not be diagnosed with one disease, but there are two or more diseases that coexist, can overlap the name of the syndrome called. In addition to connective tissue disease, similar marginal or autoimmune diseases