Bronchiolitis obliterans organizing pneumonia (BOOP) is a well-defined clinicopathological entity. The aetiology of BOOP is generally unknown, although it has been associated with specific diseases or various pharmaceutical drugs. The amiodarone is one of them. We report a patient with BOOP secondary to amiodarone therapy, who presented with cough, fever and sputum production, dyspnoea and night sweats lasting for two months. A chest radiograph showed bilateral patchy and interstitial infiltrates. Lymphocyte phenotyping of bronchoalveolar lavage fluid showed decreased ratio of CD4+:CD8+ lymphocytes. Transbronchial lung biopsy established the diagnosis of BOOP. After stopping amiodarone therapy, symptoms disappeared and the chest radiograph remained normal within two months.
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