Mixed connective tissue disease

Mixed connective tissue issue (MCTD) is a mixed manifestation of lupus erythematosus, dermatomyositis or polymyositis, scleroderma rheumatoid arthritis, etc. at the same time or at the same time. . There are high-potency spotty fluorescent antinuclear antibodies and anti-ribonucleoprotein (n-RNP) antibodies in the blood of connective tissue disease, which have less renal involvement, have a good effect on corticosteroids, and have a good prognosis. This disease was first reported by Sharp in 1972. Different opinions exist as to whether MCTD is an independent disease. Some people think that it is a subtype of SLE, or it is proposed to be a subtype of PSS, but there are also many cases. After years of observation, the symptoms are not changed, and it is considered as an independent disease.

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