Things I keep forgetting

Question 1

Pathogens community acquired pneumonia

Answer 1

Strep pneumoniae
Mycoplasma (hall of residence/flatting)
Chlamydia
Legionella (elderly smokers)
Klabsiella (aspirators, bulging fissure)

Question 2

Pathogens hospital acquired pneumonia

Answer 2

Pseudomonas, MRSA

Question 3

Ventilator associated pneumonia pathogens

Answer 3

Pseudomonas,

Acinetobacter

Question 4

Differentials centrilobular nodules

Answer 4

Infectious
- TB (endobronchial spread)
- Bronchopneumonia
- Atypical pneumonia (particularly mycoplasma)
Inflammatory
- HSP
- RB-ILD
- Silicosis
- Diffuse panbronchiolitis (chronic inflammatory condition, lymphoid hyperplasia in walls of bronchioles, asian descent)

Question 5

Differentials perilymphatic nodules

Answer 5

Sarcoidosis
Silicosis
Lymphangitic carcinomatosis

Question 6

Differentials random nodules

Answer 6

Mets
TB
LCH

Question 7

Differentials miliary nodules

Answer 7

Mets
Fungal
TB

Question 8

Differentials upper lobe scarring

Answer 8

Sarcoid
HSP
Silicosis

Question 9

Differentials tree-in-bud

Answer 9

TB
Bacterial pneumonia
Aspiration pneumonia
Airways invasive aspergillus