Facial butterfly erythema

Facial butterfly erythema is a facial symptom of systemic lupus erythematosus. Lupus erythematosus is an autoimmune disease with slow onset and insidious onset. It has various clinical manifestations and changes. It is an autoimmune disease involving many systems and organs. Due to cellular and humoral immune dysfunction, a variety of autoantibodies . It can affect the skin, serosa, joints, kidneys, and central nervous system, and is characterized by autoimmunity. There are many autoantibodies in patients, which affect not only humoral immunity but also cellular immunity, and the complement system also changes.

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