[Changes in the lung tissue in bronchial adenomas].

Changes in the lung tissue in bronchial adenomas are not dependent on their histological structure, but on the anatomical form of growth, localization and duration of the existance. Both peripheral adenomas and cancer may have an asymptomatic course. In central (especially exophitic) adenomas distelectasis, atelectasis, fibrosis and vascular regeneration develop in sequence, while with the secondary infection-pneumonic foci. In relation to the mechanism of the development, lung tissue changes may arise as a result of invasive tumor growth, hypoxia, and impaired drainage function of the bronchi, toxico-immunological disturbances.