What is the most likely diagnosis in this woman who developed eosinophilia and a diffuse erythematous eruption while being treated with hydroxychloroquine for Sjogren's syndrome?: (A) Bullous impetigo, (B) Exanthematous pustulosis, (C) Exfoliative dermatitis, (D) Stevens-Johnson syndrome
Answer is B. Answer B. Exanthematous pustulosisYellow hyperplastic papules on the tongue of a hydroxychloroquine-treated patient with a diffuse erythematous eruption is most consistent with a diagnosis of hydroxychloroquine-induced acute generalized exanthematous pustulosis. The lesions resolved following withdrawal of the medication and treatment with prednisolone.