Sarcoidosis is an inflammatory disorder. Sarcoidosis occurs when small clusters of inflammatory cells collect in various parts of the body. It can affect any organ in our body, including the lungs, lymph nodes, and skin. However, 90% of the recorded cases have been Pulmonary Sarcoidosis – that is of the lungs. It is widely believed that Sarcoidosis occurs when our immune system responds to bacteria, virus, chemicals or dust in the environment. Our cells release chemicals that fight these substances and destroy. When the inflammation around the foreign body stays, granulomas are formed and does not subside, which results in Sarcoidosis. Although sarcoidosis is not contagious, millions of people from across the world seem to be affected by this. Sarcoidosis does not have symptoms and even if it does, it depends on the organs affected. Typically, the symptoms develop over the years and could easily go undetected. Some of the general and common signs of sarcoidosis are weight loss, fatigue, inflamed lymph nodes, fever and sometimes depression. Symptoms for Sarcoidosis in various organs: Lung: A persistent dry cough, wheezing and shortness of breath and chest pain (rare) are the basic symptoms of Sarcoidosis in the lungs. A chest x-ray can diagnose this.