An autoimmune disease is – a) Pemphigus vulgarisb) Psoriasisc) Lichen planusd) Acne vulgaris

Autoimmune skin disorders Autoimmune bullous skin disorders Pemphigus Bullous pemphigoid Dermatitis herpetiformis Lichen planus Lichen planus is believed to be an autoimmune disorder as it often occurs concurrently with other autoimmune disorders like primary biliary cirrhosis, diabetes, chronic active hepatitis. Psoriasis  The theory that psoriasis is an autoimmune disorder is based on the fact that scientist have found an abnormally large number of T cells in the patch of psoriasis. Autoimmune connective tissue disorders Lupus erythematosus Dermatomyositis Scleroderma Mixed connective tissue disease Bechet's disease