PMID- 28100903 OWN - NLM STAT- MEDLINE DCOM- 20170309 LR - 20190609 IS - 1941-5923 (Electronic) IS - 1941-5923 (Linking) VI - 18 DP - 2017 Jan 19 TI - Rhodoccocus Equi Pneumonia and Paradoxical Immune Reconstitution Inflammatory Syndrome in a Patient with Acquired Immune Deficiency Syndrome (AIDS). PG - 67-71 AB - BACKGROUND Pulmonary infections are a major cause of mortality and morbidity in patients infected with human immunodeficiency virus (HIV) and can progress rapidly to respiratory failure and death without appropriate therapy. Herein, we present a rare case of an advanced HIV infection and Rhodoccocus equi (R. equi) pneumonia in a young male who had severe paradoxical immune reconstitution inflammatory syndrome (IRIS). CASE REPORT A 47-year-old nonsmoking Hispanic man with advanced HIV infection presented with severe acute necrotizing pneumonia secondary to R. equi. Although his initial response to antimicrobial therapy was optimal, he became symptomatic again in spite of continuation of antibiotics as he developed severe paradoxical IRIS 3 weeks after starting a new highly active anti-retroviral therapy (HAART). CONCLUSIONS The diagnosis of IRIS remains challenging because of the wide variations in the clinical presentation and etiologies. In spite of its rarity as an opportunistic pathogen, we recommend that R. equi, an intracellular pathogen, be included in the differential list of pathogens associated with IRIS. FAU - Zijoo, Ritika AU - Zijoo R AD - Department of Internal Medicine, Saint Francis Medical Center, Seton Hall University, Trenton, NJ, USA. FAU - Dirweesh, Ahmed AU - Dirweesh A AD - Department of Internal Medicine, Saint Francis Medical Center, Seton Hall University, Trenton, NJ, USA. FAU - Karabulut, Nigahus AU - Karabulut N AD - Department of Infectious Diseases, Saint Francis Medical Center, Trenton, NJ, USA. LA - eng PT - Case Reports PT - Journal Article DEP - 20170119 PL - United States TA - Am J Case Rep JT - The American journal of case reports JID - 101489566 SB - IM MH - Acquired Immunodeficiency Syndrome/*complications MH - Biopsy MH - *HIV MH - Humans MH - Immune Reconstitution Inflammatory Syndrome/diagnosis/*etiology MH - Male MH - Middle Aged MH - Pneumonia/diagnosis/*etiology MH - Tomography, X-Ray Computed PMC - PMC5267618 COIS- Conflicts of Interest: None declared Conflicts of interest None. EDAT- 2017/01/20 06:00 MHDA- 2017/03/10 06:00 PMCR- 2017/01/19 CRDT- 2017/01/20 06:00 PHST- 2017/01/20 06:00 [entrez] PHST- 2017/01/20 06:00 [pubmed] PHST- 2017/03/10 06:00 [medline] PHST- 2017/01/19 00:00 [pmc-release] AID - 900901 [pii] AID - 10.12659/ajcr.900901 [doi] PST - epublish SO - Am J Case Rep. 2017 Jan 19;18:67-71. doi: 10.12659/ajcr.900901.