Backg アound . Drug − induced eosinophilic pneumonia can be caused by many rnedicines . We report a case of drug − induced eosinophilic pneumonia with wanderlng infiltrate induced by medicines used in the treatnlent of an upper respiratory infection . Case. A 68 ・ year ・ old man had been treated with amoxicillin and Pelex granules for an upper respiratory infection . He then had a high fever and exertional dyspnea. A chest radiograph demollstrated infiltrative shadows wandering from the left

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... r lung field to the right lower lung field . Bronchoalveolar lavage findings indicated 25% eosinophils . We reached a diagnosis of drug −induced eosinophilic pneumonia because of the lymphocyte stimulation test for both medicines . After treatment with steroids , the clinical symptoms and radio − graphic infiltrates disappeared . Conclusion. We should consider that therapeutic preparations for upper respiratory infection can lead to eosinophilic pneumonla , ( ∬ SRE . 2007; 29:54 − 57 ) KEY WORD5 − Drug − induced lung injury , Drug −induced eosinophilic pneumonia , Wandering pneumonia は じめ に