The lung is the most commonly affected organ in sarcoidosis. Mediastinal lymph nodes (classically with eggshell calcification) are seen in 60-90% of cases. The 1-2-3 pattern of bilateral hilar and right paratracheal lymph node enlargement may be seen.

Nodules are perilymphatic with an upper lobe predominance.
Upper zone fibrosis and traction bronchiectasis occur late in the condition.

This patient underwent a bronchoscopy and biopsy which was non-diagnostic.