extrinsic allergic alveolitis
Definition: pneumoconiosis resulting from hypersensitivity due to repeated inhalation of organic dust, usually specified according to occupational exposure; in the acute form, respiratory symptoms and fever start several hours after exposure to the dust; in the chronic form, there is eventual diffuse pulmonary fibrosis after exposure over several years.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.