Cysts and Cavities
From Radipedia
Cysts
- Honeycombing
- Emphysema (bullae)
- Cystic bronchiectasis
- Pneumatocele
- Hypersensitivity pneumonitis
- LCH
- LAM
- Sjogren's syndrome
- LIP
- Papillomatosis
Cavities
- Infectious
- Pyogenic, embolic
- Granulomatous (TB, Sarcoidosis)
- Neoplasm - squamous cell carcinoma metastasis
- Vasculitities
- c-ANCA disease
- Infarct
- Thick walls suggest malignancy
- Hematogenous spread prefers lower lobes
