MEDRADSC 2I03 Lecture Notes - Lecture 16: Subcutaneous Emphysema, Chronic Obstructive Pulmonary Disease, Airway Obstruction

• School: McMaster University
• Department: Medical Radiation Sciences
• Course: MEDRADSC 2I03
• Professor: Charbonneau

Document Summary

Objectives bronchiectasis: copd (chronic obstructive pulmonary disease); chronic bronchitis, emphysema, asthma, Cb - excessive mucous production -> obstruction. Emphysema - distention of distal air space (destruction of alveolar wall space) Asthma - bronchiole spasm -> decreased air flow + obstruction. Bronchiectasis - chronic dilation of bronchi or bronchioles: adult respiratory distress syndrome (ards, mediastinal emphysema, subcutaneous emphysema, empyema. Chronic obstructive lung disease (copd: copd, airway obstruction- breathing difficult, two diseases can coexist, chronic bronchitis, emphysema, asthma, bronchiectasis. Respiratory infection, air pollution, smoking: long term exposure -> chronic irritation. Walls of bronchi and bronchioles thicken, mucous: produce extra amounts of mucous. Mucous glands can become hyperplastic: over time. Increase # of cells -> produces more mucous as well. Radiographic appearance: 50% show no changes on chest images, hasn"t manifested long enough to show anything, increased bronchovascular/lung markings, extra fluid increases density, but v subtle, if we do see something -> dirty chest.