The American journal of case reports
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BACKGROUND Herein, we describe a case of eosinophilic pneumonia that was likely to have been induced by vancomycin. CASE REPORT A 65-year-old man on maintenance hemodialysis presented with chest pain and dyspnea. He subsequently developed methicillin-resistant Staphylococcus aureus-positive acute pleural empyema in an evacuated right-sided pneumothorax. ⋯ All symptoms and the results of laboratory tests immediately improved after the discontinuation of vancomycin and initiation of prednisolone therapy. CONCLUSIONS We attribute this case of eosinophilic pneumonia to vancomycin, because all other candidate causes were ruled out, and only vancomycin fulfilled the criteria of both drug-induced eosinophilic pneumonia and drug-induced lung injury. If confirmed, this constitutes the first reported case of vancomycin-induced eosinophilic pneumonia.