Lung

Question 1

Patterns of response to acute lung injury

Answer 1

Diffuse Alveolar Damage (DAD)
Acute interstitial Pneumonia (AIP)
Bronchiolitis Obliterans - Organising Pneumonia AKA Cryptogenic organising pneumonia (BOOP)

Question 2

Features of DAD

Answer 2

Week 1 - Interstial oedema and hyaline membranes
Week 2 onwards - loose fibroblast proliferation in interstium and Type 2 pneumocyte hyperplasia (reaction to acute injury)

Diffuse, homogenous process
Can look patchy but affected lung areas all look the same

Question 3

Patterns of chronic lung injury

Answer 3

Usual Interstial pneumonia (UIP)
Non Specific interstitial Pneumonia
Chronic hypersensitivity pneumonia