What are pulmonary clinical manifestations of sarcoidosis?

Pulmonary sarcoidosis (90%, cough, dyspnea, chest pain, usually self-limited goes to remission, degree of pulmonary invovlement affects remission rate, bilateral hilar adenopathy Stage I 50% (75% regress w/in 3 years and 10% stay chronic enlarged), Bilateral adenopathy + pulmonary infiltrates Stage II 25% (66% spontaneous remission and 33% progresses or remains unchanged, have mild to moderate symptoms) Stage III (10% spontaneous remission 14%, dense pulmonary infiltrates w/out adenopathy) Stage IV (pulmonary fibrosis)