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LA BRONCHIOLITE

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Bronchiolite: le VIRUSet les LESIONS ANATOMIQUES• ORIGINES DE L’OBSTRUCTION– Origine murale: inflammation pariétale– Origine endoluminale: bouchons muqueux constituésde cellules nécrotiques desquamés, des sécrétionsmuqueuses et de l’exsudat séro-fibrineux– Le spasme bronchique (selon développement de lamusculature lisse, variable selon les enfants)

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