But is the disease real? Sarcoidosis is a condition where groups of cells in the immune system form small lumps called granulomas, which can appear in any organ in the body, per the U.S. National ...

Sarcoidosis is characterized by the formation of granulomas, or clumps of immune cells, in organs, including the skin. The ...

[4] Briefly, incident cases of sarcoidosis were collected at 10 academic ... noncaseating granulomas on tissue biopsy on one or more organs within 6 months of study enrollment with stains that ...

This approach was developed by a group of experienced sarcoidosis experts, and uncertainty about its ability to classify organ involvement is addressed with the graded likelihood of organ involvement.