What are the histopathological changes in lung diseases?
Lung diseases often involve specific histopathological changes:
- Chronic Obstructive Pulmonary Disease (COPD): Characterized by chronic inflammation, destruction of alveolar walls (emphysema), and mucus hypersecretion (chronic bronchitis). - Asthma: Marked by bronchial hyperresponsiveness, smooth muscle hypertrophy, and increased mucus production. - Pulmonary fibrosis: Involves excessive deposition of fibrous connective tissue in the lung interstitium, leading to stiffening of the lungs. - Lung cancer: Includes various types, such as adenocarcinoma and squamous cell carcinoma, each with distinct histological features.