Cystic lung disease

Playlist contributed by Greg Tarr
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Definition:

Thin walled <2 mm (>4 mm = cavity)

 

Well defined interface with normal lung

 

Epithelial or fibrous wall

 

 

Solitary cysts: incidentally discovered. Age-related or remnant of prior trauma or infection.

 

 

Multifocal/diffuse cysts: lymphoid interstitial pneumonia, lymphangioleiomyomatosis, Langerhan’s cell histiocytosis, (LIP/LAM/LCH)

Birt-Hogg-Dubé syndrome, tracheobronchial papillomatosis, or primary and metastatic cancers.

 

 

Multifocal/diffuse cysts + nodules: lymphoid interstitial pneumonia, Langerhans cell histiocytosis, light-chain deposition disease, and amyloidosis.

 

 

Multifocal/diffuse cysts + ground-glass opacities: lymphoid interstitial pneumonia, Pneumocystis jirovecii pneumonia and desquamative interstitial pneumonia.