Crohn's disease can be associated with several respiratory manifestations. We report here a case of pulmonary migratory infiltrates associated with bilateral pleural thickening and peripheral eosinophilia. The histopathological findings show an association of necrotizing nodules, eosinophilic infiltration in the non-abscessed lung tissue, areas of non-caseating epithelioid granulomas, and an extensive pleural fibrosis. The different histopathological findings are detailed and the responsibility of either Crohn's disease or treatment by mesalazine is discussed.
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