Etanercept-induced Lichen Striatus

• Lichen Striatus is a dermatosis along Blaschko lines and its etiology is unknown. It would occurr secondarily to a cytotoxic reaction because of a stimulation of the immune system.
• The authors report lichen striatus occurring after etanercept (50mg/d) in a 70 year old patient treated for rheumatoid arthritis.

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Contributors

Dr Christophe Hsu – dermatologist. Geneva, Switzerland

Source of information: Lichen striatus associated with etanercept treatment of rheumatoid arthritis. Lora V, Kanitakis J, Latini A, Cota C. J Am Acad Dermatol. 2014 Apr;70(4):e90-2. doi: 10.1016/j.jaad.2013.11.039.