We report the case of a 56 year-old Gabonese man under treatment by candesartan-hydrochlorothiazide for essential hypertension. After 2 months of treatment, he presented with pneumonia and severe respiratory failure. The chest radiography showed centrilobular nodules resembling tumor metastases, but no evidence of a primary tumor. Laboratory and imaging found no evidence of infectious or autoimmune disease. The computed tomography findings led to a diagnosis of diffuse alveolitis. The candesartan treatment was stopped and oral corticosteroid therapy (50 mg/day) initiated. The rapid favorable outcome supports the diagnosis of a drug-induced infiltrative lung disease.
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