Hello, pulmonary sarcoidosis is a multi-organ granulomatous disease that often invades the lungs, bilateral hilar lymph nodes, and can also invade almost every organ in the body. The main symptoms are fever, fatigue, weight loss, joint pain, chest pain, cough, difficulty breathing, and hemoptysis. Lighter patients do not need treatment, and severe patients can be treated with immunosuppressants and cytotoxic drugs.