[Morphofunctional status of the lungs in extrinsic allergic alveolitis]

Morphological changes in the lungs of 57 patients suffering from exogenous allergic alveolitis (EAA) are described, the majority of patients had a contact with birds. Interstitial edema, microcirculation disturbances and abundant lymphoid infiltration were observed at an acute initial stage of the disease in 5 patients. Sarcoid-like granulomas in the lung interstitium and bronchiolar wall were found at a subacute stage of the disease in 10 patients along with edema, microcirculatory disturbances and lymphoid infiltration. Predomination of fibrosis with a deformation of all lung structures were observed in 42 patients with a chronic course of the disease.