PMID- 37273292 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230606 IS - 2168-8184 (Print) IS - 2168-8184 (Electronic) IS - 2168-8184 (Linking) VI - 15 IP - 5 DP - 2023 May TI - Immune Reconstitution Inflammatory Syndrome Reaction in Patient on Long-Term Prednisone. PG - e38506 LID - 10.7759/cureus.38506 [doi] LID - e38506 AB - Immune reconstitution inflammatory syndrome (IRIS) can be triggered in many ways. IRIS has been recognized during tuberculosis (TB) therapy, especially in patients newly initiated on antiretroviral therapy for HIV or those taken off immunosuppressives such as tumor necrosis factor-alpha inhibitors. However, there are still many triggers of IRIS that are less understood. This case report describes a patient with scrofula that was concerning for TB reactivation, who then had subsequent IRIS. The patient had been consistently using low-dose long-term prednisone for suppression of his polymyalgia rheumatica. It is suspected that the IRIS reaction could be due to an interaction between rifampin and prednisone causing decreased efficacy of its immunosuppressive effects. CI - Copyright (c) 2023, Sahgal et al. FAU - Sahgal, Savina AU - Sahgal S AD - Medical School, Rush University Medical Center, Chicago, USA. FAU - Shankaran, Shivanjali AU - Shankaran S AD - Infectious Diseases, Rush University Medical Center, Chicago, USA. FAU - Ansell, David A AU - Ansell DA AD - Internal Medicine, Rush University Medical Center, Chicago, USA. LA - eng PT - Case Reports DEP - 20230503 PL - United States TA - Cureus JT - Cureus JID - 101596737 PMC - PMC10238129 OTO - NOTNLM OT - autoimmune OT - corticosteroids OT - inflammatory reaction OT - iris OT - prednisone OT - tuberculosis COIS- The authors have declared that no competing interests exist. EDAT- 2023/06/05 13:05 MHDA- 2023/06/05 13:06 PMCR- 2023/05/03 CRDT- 2023/06/05 11:45 PHST- 2023/05/03 00:00 [accepted] PHST- 2023/06/05 13:06 [medline] PHST- 2023/06/05 13:05 [pubmed] PHST- 2023/06/05 11:45 [entrez] PHST- 2023/05/03 00:00 [pmc-release] AID - 10.7759/cureus.38506 [doi] PST - epublish SO - Cureus. 2023 May 3;15(5):e38506. doi: 10.7759/cureus.38506. eCollection 2023 May.