Lung Diseases Flashcards
What is cystic fibrosis?
hereditary disease characterized by the secretion of excessively viscous mucous by all the exocrine glands
What is idiopathic respiratory distress syndrome (hyaline membrane disease)?
lack of lipoprotein ‘surfactant’ from immaturity or birth trauma
What is alveolar pneumonia?
Replaces air in the alveoli with inflammatory exudate which appears solid or radiopaque
What is bronchopneumonia?
Originates in the bronchi or bronchiolar mucosa and spreads to adjacent alveoli
What can bronchopneumonia lead to?
atelectasis
What is interstitial pneumonia?
Involves walls, lining of the alveoli and the interstitial
supporting structures of lungs and alveoli septa
What is lung abscess?
area of necrosis of parenchyma containing pus
Tuberculosis
Inflammatory cells collect around TB clump to
form a small mass (tubercle), invisible to the
naked eye
Tuberculoma
Sharply circumscribed parenchymal nodule, often containing active TB
RSV Respiratory syncytial virus
Attacks lower respiratory tract and causes necrosis of the epithelium of bronchi and
bronchioles which leads to bronchiolitis (produces bronchial spasm and interstitial
pneumonia)
Chronic Bronchitis
chronic inflammation of bronchi leads to coughing and
sputum production
Emphysema
airborne irritants damage and coat the alveoli which causes mucosal inflammation and
secretion of excess mucus that plugs the air passages
Asthma
wide spread narrowing of the airways, response of tracheobronchial tree to irritants
Bronchiectasis
permanent abnormal dilation of one or more large bronchi from destruction of elastic
and muscular components of the bronchial wall.
bronchial adenoma
- Neoplasms of low grade malignancy
- Occur centrally in major segmental bronchi and cause obstruction