Obstructive Lung Disease - Overview Table

Overview Table

Following is an overview of the main obstructive lung diseases. Chronic obstructive pulmonary disease is mainly a combination of chronic bronchitis and emphysema, but may be more or less overlapping with all conditions.

Condition Main site Major changes Causes Symptoms
Chronic bronchitis Bronchus Hyperplasia and hypersecretion of mucus glands Tobacco smoking and air pollutants Productive cough
Bronchiectasis Bronchus Dilation and scarring of airways Persistent severe infections Cough, purulent sputum and fever
Asthma Bronchus
  • Smooth muscle hyperplasia
  • Excessive mucus
  • Inflammation
  • Constriction
 Immunologic or idiopathic Episodic wheezing, cough and dyspnea
Emphysema Acinus Airspace enlargement and wall destruction Tobacco smoking Dyspnea
Bronchiolitis
(subgroup of chronic bronchitis)		 Bronchiole Inflammatory scarring and bronchiole obliteration Tobacco smoking and air pollutants Cough, dyspnea
Unless else specified in boxes then reference is

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