Chronic bronchitis pathology
- Inflammatory infiltrate in bronchial walls is composed of lymphocytes and plasma cells.
- In their lumen are found desquamated epithelial cells (catarrhal inflammation) , and in event of exacerbation – catarrhal-purulent exudate.
- In mucosa often occurs mataplasia of cylindric cilliated epithelium into multilayered squamous epithelium.
- Goblet cells are hyperplastic, hyperplastic are also the sero-mucous glands in the submucosal layer.
- Muscularis mucosae is hypertrophic.