To learn about the other type, see Non-Hodgkin Lymphoma. To understand what Hodgkin lymphoma is, it helps to know about the lymph system (also known as the lymphatic system). The lymph system is part ...

Granulomas are groups of inflamed tissue that can affect how organs work. Sarcoidosis occurs most often in the lungs and lymph nodes. But it can occur in almost any organ. Sarcoidosis in the lungs is ...