Back issues No.2 - 2011 / Correspondence  

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Unilateral discoid lupus erythematosus at the site of a healed abrasion wound: an illustration of isotopic response
Wei-Chih Ko , Chih-Ming Hung , Wang-Cheng Ko , Yu-Fu Chen , Tsen-Fang Tsai

A 35-year-old man presented in February 2010 with a 3-year
history of asymptomatic scaly erythema on his right face. Initially,
some asymptomatic red-purple, pea-sized papules developed on
his right cheek. The papules then increased in number and
extended gradually, forming confluent plaques on his right face in
2 years. The skin lesion, however, has been confined to his right
face since onset. The patient did not recall any local trauma history
but on review of his old medical chart, he had an abrasion wound
on the same site of his right face from a car accident, which brought
him to our Emergency Department in 1999. He denied any history
of photosensitivity or other systemic symptoms. No family history
of collagen diseases was noted. He had been treated unsuccessfully
with topical corticosteroid ointment and topical Chinese herbal
medicine in private clinics before he came to our hospital.

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