[Ultrastructural characteristics of the bronchial epithelium in pulmonary tuberculosis (according to biopsy...

Biopsy materials of the wall of the lobar and segmental bronchi obtained from 345 patients with pulmonary tuberculosis were studied. In 25 patients pathohistological investigations were supplemented with electron-microscopy studies. Of 345 biopsy specimens tuberculous inflammation was found in 5 cases. The ultrastructural analysis showed the sequence of changes occurring in the cells of the bronchial epithelium in chronic inflammation: in the development of sclerotic changes in the wall of the bronchus hyperplasia of ultrastructures was followed by their diminution and desctruction.