chest

Cysts

Cysts

Langerhans cell histiocytosis
Lymphangioleiomyomatosis
Lymphoid interstitial pneumonia (LIP)
Pneumocystis pneumonia (PCP)
Birt-Hogg-Dubé Syndrome
Emphysema (look alike)

Underconstruction

Edema
Eosinophilic lung disease
Granulomatosis with polyangiitis (Wegners)