2 Skin and mucosa e skin symptoms in 80% of patients ● specifIc features:40% malar rash discoid rash o nonspecific features 60% ● photosensitivity40% o baldness 40% oral ulcer 60%/ Raynaud's phenomenon2.Skin and mucosa ● skin symptoms in 80% of patients ● specific features: 40% malar rash discoid rash ● nonspecific features 60% ● photosensitivity 40% ● baldness 40% ● oral ulcer 60% ● Raynaud’s phenomenon