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Coup de Sabre
I saw this case today of a 22-year old young lady. The lesion looks like a typical Coup de Sabre, with atrophy of the underlying skin and subcutaneous tissue. She has no family history of autoimmune or any skin conditions or anything relevant to the appearance of this lesion on her forehead. It appeared about 2 years ago and is associated with a slight alopecia on the affected side. I suspected localized scleroderma (Coup de Sabre) and advised her family to do biopsy and histology, as well as, serological tests for ANA and anti-ssDNA The parents refused to do the biopsy and histology.