PMID- 36919058 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230317 IS - 2168-8184 (Print) IS - 2168-8184 (Electronic) IS - 2168-8184 (Linking) VI - 15 IP - 2 DP - 2023 Feb TI - Immune Reconstitution Inflammatory Syndrome Presenting as Disseminated Kaposi Sarcoma. PG - e34832 LID - 10.7759/cureus.34832 [doi] LID - e34832 AB - We present a patient who was previously diagnosed with HIV and had multiple violaceous skin lesions at the time of his diagnosis. Following the initiation of antiretroviral therapy (ART), the number of lesions increased significantly and he developed shortness of breath, which prompted hospital admission for further workup. Biopsy of the skin lesions confirmed the diagnosis of Kaposi sarcoma (KS). Bronchoscopy with biopsy revealed KS lesions in his respiratory system. Imaging and biopsy confirmed KS invasion of lymph nodes. Due to widespread KS, he was diagnosed with immune reconstitution inflammatory syndrome (IRIS). Because of the lack of improvement on ART alone, he was started on chemotherapy, which decreased the size of existing skin lesions, stalled the development of new skin lesions, and led to symptom improvement. As a result of this case, we recommend that treatment teams have close follow-ups of patients started on ART and that they remain mindful of the possibility of IRIS. Disseminated KS may warrant a prompt response with chemotherapy to improve outcomes. CI - Copyright (c) 2023, Ruzgas et al. FAU - Ruzgas, Gabriele AU - Ruzgas G AD - Family and Community Medicine, University of Illinois Chicago, Chicago, USA. FAU - Eshan, Shayet Hossain AU - Eshan SH AD - Internal Medicine, Ascension Saint Joseph - Chicago, Chicago, USA. FAU - Ramanathan, Shrungavi AU - Ramanathan S AD - Internal Medicine, Ascension Saint Joseph - Chicago, Chicago, USA. FAU - Gotimukul, Ashwini AU - Gotimukul A AD - Internal Medicine, Ascension Saint Joseph - Chicago, Chicago, USA. FAU - Bodapati, Rohan K AU - Bodapati RK AD - Internal Medicine, University of Wisconsin School of Medicine and Public Health, Madison, USA. LA - eng PT - Case Reports DEP - 20230210 PL - United States TA - Cureus JT - Cureus JID - 101596737 PMC - PMC10008384 OTO - NOTNLM OT - antiretroviral therapies OT - art OT - disseminated kaposi sarcoma OT - doxorubicin OT - hiv OT - iris OT - kaposi sarcoma OT - pulmonary kaposi sarcoma COIS- The authors have declared that no competing interests exist. EDAT- 2023/03/16 06:00 MHDA- 2023/03/16 06:01 PMCR- 2023/02/10 CRDT- 2023/03/15 01:47 PHST- 2023/02/09 00:00 [accepted] PHST- 2023/03/15 01:47 [entrez] PHST- 2023/03/16 06:00 [pubmed] PHST- 2023/03/16 06:01 [medline] PHST- 2023/02/10 00:00 [pmc-release] AID - 10.7759/cureus.34832 [doi] PST - epublish SO - Cureus. 2023 Feb 10;15(2):e34832. doi: 10.7759/cureus.34832. eCollection 2023 Feb.