Title: sarcoidosis Long Title: IUPAC Gold Book - sarcoidosis DOI: 10.1351/goldbook.13658 Status: current Definition Chronic, progressive, generalized granulomatous reticulosis of unknown etiology, involving almost any organ or tissue, including the skin, lungs, lymph nodes, liver, spleen, eyes, and small bones of the hands and feet. It is characterized histologically by the presence in all affected organs or tissues of noncaseating epithelioid cell tubercles. Note There is usually diminished or absent reactivity to tuberculin, and in most active cases, a positive Kveim reaction. Related Terms - Kveim reaction: https://goldbook.iupac.org/terms/view/13368 - granulomatous: https://goldbook.iupac.org/terms/view/13185 - tuberculin: https://goldbook.iupac.org/terms/view/13757 Source - PAC, 2012, 84, 1113. 'IUPAC glossary of terms used in immunotoxicology (IUPAC Recommendations 2012)' on page 1241 (https://doi.org/10.1351/PAC-REC-11-06-03) Other Outputs - html: https://goldbook.iupac.org/terms/view/13658/html - json: https://goldbook.iupac.org/terms/view/13658/json - xml: https://goldbook.iupac.org/terms/view/13658/xml Citation: Citation: 'sarcoidosis' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.13658 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-05-14T09:50:55+00:00