Chest X-ray Staging of Sarcoidosis

0

Normal chest x-ray

—

I

Bilateral hilar, paratracheal, and mediastinal lymphadenopathy without parenchymal infiltrates

60–80%

II

Bilateral hilar and mediastinal adenopathy with interstitial infiltrates (usually in upper lung fields)

50–65%

III

Diffuse interstitial infiltrates without hilar adenopathy

< 30%

IV

Diffuse fibrosis, often associated with fibrotic-appearing conglomerate masses, traction bronchiectasis, and traction cysts

0%