Case Challenge

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A 30-year-old lady presented with a 4-year-history of a relapsing and remitting rash on her chest exacerbated sometimes with sun exposure. There were no systemic symptoms and laboratory work up for autoimmune diseases was negative. There was no response to topical steroids. The clinical photos and link to histological slides is attached.Click Here

1. Based on the clinical and histological picture, what is the diagnosis? *

2. Name the stain used in slide 2. *

3. What is the drug of choice for the treatment of this condition? *