Granulomas

Granulomas are clusters of cells that form in response to an infection or foreign matter. They are composed of macrophages, a type of white blood cell in the immune system, as well as other cell types. Granulomas can form in many parts of the body, including the lungs, intestines, lymph nodes, and skin, depending on the source of the infection or foreign matter. The formation of granulomas is an important step in helping the body to isolate an infection or foreign matter in an effort to prevent it from spreading throughout the body and causing further damage. Granulomas have also been studied as potential treatments for certain types of cancer and other diseases.