Pulmonary Emphysema

**Definition:** Enlargement of air spaces distal to the TERMINAL BRONCHIOLES where gas-exchange normally takes place. This is usually due to destruction of the alveolar wall. Pulmonary emphysema can be classified by the location and distribution of the lesions.

**Tree numbers:** - C08.381.495.389.750 - C23.550.291.500.875.875

**Synonyms:** - Emphysema, Pulmonary - Emphysemas, Pulmonary - Pulmonary Emphysemas