Acquired immunodeficiency syndrome-related progressive multifocal leukoencephalopathy-immune reconstitution inflammatory syndrome: prevalence, main characteristics, and outcomes in a Brazilian center / Síndrome inflamatória de reconstituição imune da leucoencefalopatia multifocal progressiva associada à síndrome da imunodeficiência adquirida: prevalência, principais características e desfecho em um hospital brasileiro

Abstract Background Progressive multifocal leukoencephalopathy (PML) - immune reconstitution inflammatory syndrome (IRIS) in people living with HIV/AIDS (PLWHA) has been rarely described in low- and middle-income countries. Objective To describe the prevalence of PML-IRIS among PLWHA with PML and its main features in a tertiary hospital in Brazil. Methods We performed a retrospective cohort study. We included PLWHA with PML-IRIS patients admitted at Instituto de Infectologia Emílio Ribas, São Paulo, Brazil, between 2011 and 2021. We retrieved information on neurological manifestations, neuroimaging findings, treatments, and outcomes. Results We identified 11 (11.8%) PML-IRIS cases among 93 patients with definite PML. Eight (73%) cases were men and had a median (IQR) age of 41 (27-50) years. Seven (63.6%) patients developed unmasking PML-IRIS and 4 (36.4%) had paradoxical PML-IRIS. The median (IQR) time from initiation of combined antiretroviral therapy (cART) to IRIS diagnosis was 49 (30-70) days. Ten (90.9%) patients received corticosteroids. There were 4 (36%) in-hospital deaths and 3 were associated with hospital-acquired pneumonia. Among the 7 (64%) patients who survived, 5 (71.5%) had sequelae at discharge. One year after the PML-IRIS diagnosis, 6 (54.5%) patients were alive. Conclusion The prevalence of PML-IRIS was 11.8%. Most patients had unmasking PML-IRIS. In-hospital mortality and morbidity were high. One-year survival was similar to that described in some high-income countries.

Resumo Antecedentes A síndrome inflamatória de reconstituição imune (SIRI) da leucoencefalopatia multifocal progressiva (LEMP) em pessoas vivendo com HIV/Aids (PVHA) foi raramente descrita em países de baixa e média renda. Objetivo Descrever a prevalência da SIRI-LEMP- em PVHA com LEMP e suas principais características em um hospital no Brasil. Métodos Foi realizado um estudo de coorte retrospectivo. Incluímos PVHA com SIRI-LEMP admitidos no Instituto de Infectologia Emílio Ribas, São Paulo, Brasil, entre 2011 e 2021. Recuperamos informações sobre manifestações neurológicas, neuroimagem, tratamento e desfecho. Resultados Identificamos 11 (11,8%) casos de SIRI-LEMP entre 93 pacientes com LEMP definitiva. Oito (73%) casos eram homens e a mediana de idade (amplitude interquartile - AIQ) foi de 41 (27-50) anos. Sete (63,6%) pacientes desenvolveram SIRI-LEMP "desmascarada" e 4 (36,4%) casos apresentaram SIRI-LEMP "paradoxal". A mediana de tempo (AIQ) desde o início da terapia antirretroviral combinada (cART) até o diagnóstico de SIRI foi de 49 (30-70) dias. Dez (90,9%) pacientes receberam corticoide. Houve 4 (36%) óbitos intra-hospitalares e 3 foram associados à pneumonia hospitalar. Dos 7 (64%) pacientes que sobreviveram, 5 (71,5%) ficaram com sequelas na alta. Um ano após o diagnóstico de SIRI-LEMP, 6 (54,5%) pacientes estavam vivos. Conclusão A prevalência de SIRI-LEMP foi de 11,8%. A maioria dos pacientes apresentava SIRI-LEMP "desmascarada". A mortalidade e morbidade hospitalar foram altas. A sobrevida em 1 ano foi semelhante à descrita em alguns países de alta renda.

Biomarcadores para el diagnóstico del síndrome de reconstitución inmune / Biomarkers for the diagnosis of immune reconstitution syndrome

Introducción: el síndrome inflamatorio de reconstitución inmune es una complicación clínica dada en algunas personas infectadas con el virus de la inmunodeficiencia humana (VIH) luego de empezar la terapia antirretroviral; se destaca por la producción de citoquinas proinflamatorias, que se han estudiado como posibles biomarcadores que puedan orientar para el diagnóstico y pronóstico de esta condición clínica. Objetivo: llevar a cabo una revisión actualizada de los avances en los biomarcadores para el diagnóstico de SIRI, resaltando la importancia de las moléculas inflamatorias y los exosomas, tanto en su patogénesis como un posible Gold estándar para la confirmación de este estado inflamatorio. Metodología: se realizó una revisión bibliográfica en bases de datos, como Science Direct, PubMed, Scopus y Medline, partiendo de los siguientes términos MeSH: síndrome inflamatorio de reconstitución, enfermedades del sistema inmune, biomarcadores, fármacos antiVIH, plasma. Conclusión: cada vez existen más avances en la identificación de moléculas que pueden servir como biomarcadores de SIRI, buscando un oportuno diagnóstico, monitoreo de la progresión clínica, mejor respuesta al tratamiento y más hallazgos sobre la fisiopatología, pero persiste la necesidad de encontrar un Gold estándar que proporcione criterios para su sospecha y confirmación.

Introduction: The inflammatory syndrome of immune reconstitution (IRIS) is a clinical complication given in some people infected with the human immunodeficiency virus (HIV), after they begin antiretroviral therapy (ART), which stands out for the production of abundant proinflammatory cytokines, which have been studied as possible biomarkers that can guide the diagnosis and prognosis of this clinical condition. Objective: Review the advances in biomarkers for the diagnosis of IRIS,and the importance of inflammatory molecules and exosomes, so their pathogenesis and as a possible Gold standard for confirmation of this inflammatory. Methodology: A bibliographic review was carried out in databases, such as Science Direct, Pubmed, Scopus and Medline based on the following MeSH terms: Inflammatory reconstitution syndrome, Immune system diseases, Biomarkers, Anti-HIV drugs, Plasma. Conclusion: There are more and more advances in the identification of various molecules that can serve as biomarkers of IRIS, seeking timely diagnosis, monitoring of clinical progression, better response to treatment and more findings on the pathophysiology of IRIS, but the urgent need to find a gold standard that provides criteria for its suspicion and confirmation persists.

Investigation on the incidence of IRIS in HIV patients with TB infection and its relationship with Th17/Treg, CD4 + T lymphocyte levels / 中国医师杂志

Objective:To investigate the incidence of immune reconstitution inflammatory syndrome (IRIS) in patients with HIV (HIV) and tuberculosis (TB) infection, and analyze the relationship between Th17/Treg cytokines, CD4 + T lymphocytes and IRIS. Methods:HIV patients with TB infection admitted to Public Health Clinical Center of Chengdu from June 2020 to June 2022 were divided into IRIS group (31 cases) and non IRIS group (93 cases) according to whether IRIS occurred after highly active antiretroviral therapy (HAART). The Demography data, clinical data and laboratory indicators of the two groups were compared. Multivariate logistic regression analysis was conducted to investigate the influencing factors of IRIS in HIV patients with TB infection.Results:There was no significant difference in Demography data between the two groups ( P>0.05). There was a statistically significant difference in the history of opportunistic infection between the IRIS group and the non IRIS group (χ 2=5.194, P<0.05). The levels of HIV RNA, interleukin (IL)-17, and IL-23 in the IRIS group were higher than those in the non IRIS group (all P<0.05). The levels of the γ interferon (IFN- γ), the transforming growth factor-β (TGF- β) and baseline CD4 + T lymphocyte count were lower than those in the non IRIS group (all P<0.05). The results of multivariate logistic regression analysis showed that IL-17 ( OR: 1.266, 95% CI: 1.095-1.464), IL-23( OR: 1.384, 95% CI: 1.120-1.710), and TGF- β( OR: 0.589, 95% CI: 0.436-0.797) were influencing factors for the occurrence of IRIS in HIV patients with TB infection (all P<0.05). Conclusions:For patients with high IL-17 levels, high IL-23 levels, and low TGF- β level of HIV complicated with TB infection, clinical prevention and control should be carried out as soon as possible to prevent the occurrence of IRIS.

Strongyloides stercoralis en la médula ósea de una persona que vive con VIH: reporte de caso

Strongyloides stercoralis es un nemátodo que se caracteriza por causar infección intestinal, usualmente asintomática, en pacientes inmunocompetentes. Sin embargo, en aquellos que viven con VIH, y de acuerdo con su estado inmune, puede generar un síndrome de hiperinfección con complicaciones diversas por diseminación a diferentes órganos. Se presenta el caso de un paciente de 30 años con diagnóstico de novo de infección por el virus de la inmunodeficiencia humana, con documentación de enfermedad linfoproliferativa. En los estudios complementarios se documenta la presencia de Strongyloides stercoralis de manera inusual en la médula ósea. A pesar de contar con un recuento de linfocitos T CD4+ mayor a 400 células/ µL y de haberse iniciado el manejo para esta condición con ivermectina, el paciente fallece por un estado séptico asociado al síndrome de hiperinfección, por lo cual se considera que este es un caso inusitado que obliga al clínico a tener en cuenta la presencia del nemátodo en pacientes que viven con VIH.

Summary Strongyloides stercoralis is a nematode that is characterized by causing a usually asymptomatic intestinal infection in immunocompetent individuals. However, in patients living with HIV and depending on their immune status, it can generate a hyperinfection syndrome with various complications due to dissemination to different organs. We present the case of a 30-year-old patient with a de novo diagnosis of human immunodeficiency virus infection and lymphoproliferative disease. Within the laboratory workup, the presence of Strongyloides stercoralis was documented in the bone marrow. Despite having a CD4+ T lymphocyte count greater than 400 cells/microliter and having started treatment for this condition with ivermectin, the patient died due to a septic state associated with hyperinfection syndrome, which is why this is considered an unusual case that alerts the clinician to take into account the presence of the nematode in patients living with HIV.

Guillain-Barré syndrome spectrum as manifestation of HIV-related immune reconstitution inflammatory syndrome: case report and literature review

ABSTRACT A 34-year-old man presented with a history of 21-days of gait unsteadiness and diplopia. Ten days before presentation, he developed limb weakness and in the last three days reduced consciousness. HIV infection was diagnosed three months ago (CD4+ = 160 cells/ mm3; viral load HIV-1 = 144.000 copies/mL), and antiretroviral therapy was initiated. Impaired consciousness, ophthalmoplegia, limb weakness, ataxia, areflexia, and Babinskys sign were noted. At that moment, CD4+ count was 372 cells/mm 3 and viral load HIV-1 < 50 copies/mL. The clinical, laboratory and neurophysiological findings suggest overlapping Guillain-Barré syndrome (GBS) and Bickerstaff brainstem encephalitis as manifestation of HIV-related immune reconstitution inflammatory syndrome (IRIS). Here, we review and discuss 7 cases (including the present report) of GBS spectrum as manifestation of HIV-related IRIS.

Postinfectious inflammatory response syndrome in patients with cryptococcal meningitis / 中华神经科杂志

Cryptococcal meningitis is a common fungal meningitis that may present with an abnormal immune response during effective antifungal therapy and is called immune reconstitution inflammatory syndrome in human immunodeficiency virus (HIV)-infected patients. Similar phenomenon can also be seen in non-HIV patients with normal immune function in the past. Paradoxical clinical and/or imaging deterioration occurs due to strong immune response during treatment, which is called post-infectious inflammatory response syndrome. At present, it has not attracted attention. This complication is an important cause of poor prognosis in non-HIV patients. Early identification and treatment of post-infectious inflammatory response syndrome is of great significance. This article will review its possible pathogenesis, clinical manifestations, imaging characteristics, risk prediction, diagnosis, treatment and prognosis.

The therapeutics and management of cryptococcus-related immune reconstitution inflammatory syndrome in AIDS patients / 中华临床感染病杂志

Acquired immune deficiency syndrome (AIDS) can cause various opportunistic infections clinically due to severe defects in the body’s cellular immune function. Cryptococcosis is a common serious opportunistic infection in AIDS patients. With the promotion and popularization of high activity antiretroviral therapy (HAART) programs worldwide, the mortality rate of AIDS-related cryptococcosis has been significantly decreased. After initiating antiviral therapy, some patients experienced recurrence and aggravation of clinical symptoms during anti-cryptococcal treatment. The body has an inflammatory response to the excessive immune regulation of cryptococcal antigens, which is called cryptococcus-related immune reconstitution inflammatory syndrome (C-IRIS). C-IRIS seriously affects the quality of life and prognosis of patients. This article reviews the clinical features, pathogenesis and the latest treatment and management strategies of C-IRIS in AIDS patients.

Clinical manifestation and treatment of ocular immune reconstitution inflammatory response syndrome in acquired immunodeficiency syndrome patients with cytomegalovirus retinitis / 中华实验眼科杂志

Objective:To investigate the ocular characteristics and treatment prognosis of ocular immune reconstruction inflammatory syndrome (IRIS) in patients with cytomegalovirus retinitis (CMVR) complicated with acquired immunodeficiency syndrome (AIDS).Methods:A serial case-observational study was conducted.Seventeen eyes from 15 male 21-to 43-year-old AIDS patients combined with CMVR, who were diagnosed with IRIS at Beijing You'an Hospital, Capital Medical University from February 2016 to December 2018 were included.The best corrected visual acuity (BCVA) of patients was recorded, and the intraocular pressure and anterior segment was measured with a non-contact tonometer and a slit-lamp microscope, respectively.The ocular fundus was observed by fundus photography and optical coherence tomography (OCT). Reverse transcription polymerase chain reaction was used to measure the cytomegalovirus deoxyribonucleic acid (CMV-DNA) content in the aqueous humor during the occurrence of IRIS.The flow cytometry was employed to determine the peripheral blood CD4 + T lymphocyte count before highly active antiretroviral therapy (HAART) and during the occurrence of IRIS.All patients were followed for 3 to 25 months, with an average of 15 months.The HAART time of patients was 17 to 104 days, with an average of (66.1±27.4) days.Patients with anterior segment inflammatory reactions were given the anti-inflammatory and mydriatic treatment.Patients with severe vitreous opacity were intravitreally injected with 4 mg of triamcinolone.Patients with macular edema were given 0.5 mg intravitreal injection of conbercept.The study adhered to the Declaration of Helsinki and was approved by an Ethics Committee of Beijing You'an Hospital, Capital Medical University (No.[2017]11). Written informed consent was obtained from each patient prior to any examination. Results:Anterior segment inflammation (Tyndall effect, KP, post-iris adhesion) was found in 9 eyes, vitreous opacities to varying degrees in 11 eyes, and macular edema in 2 eyes.The CMV-DNA content was negative (<500 copies/ml) in 15 eyes.The CD4 + T lymphocyte count in peripheral blood during IRIS was 67 (51, 99) cells/μl, which was significantly higher than 17(6, 20) cells/μl before HAART treatment ( Z=-4.48, P<0.01). Two of the 15 AIDS patients had tuberculosis.The BCVA of the patients was improved from 0.30 (0.10, 0.55) before treatment to 0.50 (0.35, 0.60) after treatment, and the difference was statistically significant ( Z=-2.34, P=0.019). Conclusions:The anterior and posterior segment may be involved in IRIS patients with AIDS and CMVR, and the corresponding ocular treatment is effective.

Immune reconstitution inflammatory syndrome in non human immunodeficiency viruses children on anti tubercular treatment

The term IRIS is almost solely used in human immunodeficiency virus seropositive patients who initiated anti-retroviral therapy (ART), the term paradoxical reaction is generally used to describe a clinical worsening of tuberculosis disease after the initiation of antituberculosis treatment. Distinguishing this paradoxical reaction (PR) from disease progression or treatment failure is an important issue in CNS tuberculosis management. Thus, one must keep a watch for neurological deterioration in a child with Central nervous system tuberculosis (CNS TB). We are presenting a case of a non-Human immunodeficiency virus (HIV) child who developed TB-IRIS while on anti-tubercular drugs, who subsequently responded to steroids along with continuation of antitubercular treatment (ATT).

Prevalence, Clinical Manifestations and Predictors of Immune Reconstitution Inflammatory Syndrome among HIV-Infected Patients in Malaysia Infectious Disease Centre: A Retrospective Study

@#Introduction: Immune reconstitution inflammatory syndrome (IRIS) is paradoxical clinical deterioration experienced by some HIV-infected patients in response to antiretroviral therapy (ART). There is still limited published data on IRIS from this region including Malaysia. This study aimed to determine IRIS prevalence, clinical manifestations and possible predictors among HIV-infected patients in an infectious disease centre in Peninsular Malaysia. Method: This retrospective study was conducted in Hospital Sungai Buloh involving secondary data of 256 HIV-infected patients who were initiated on ART in the year 2017. Medical record of each patient was reviewed for up to 12 months following ART initiation to identify IRIS diagnosis which was made by the treating physician. Relevant clinical and laboratory information were retrieved from hospital electronic database. Results: IRIS has occurred in 17.6% of patients. Infections by Mycobacterium tuberculosis (53.3%), Pneumocystis jirovecii (11.1%) and Talaromyces marneffei (6.6%) were the commonest three aetiologies of IRIS. Subacute lupus erythematosus was the only non-infectious IRIS identified. Baseline HIV viral load, CD4+ T-cell count and haemoglobin level between IRIS and non-IRIS patients were significantly different. Risk of developing IRIS was increased seven times in patients with CD4+ T-cell count < 100 cells/µL and four times in patients with HIV RNA viral load > 5.5 log10 copies/ml prior to ART initiation. Conclusion: Mycobacterium tuberculosis infections were the highest IRIS manifestation. Although rare, non-infectious IRIS does occur and should be part of the differential diagnosis. Patients with positive predictors should be appropriately monitored for possible IRIS development once initiated on ART.

Research progress of immune reconstitution inflammatory syndrome in AIDS / 中华实验和临床病毒学杂志

Human immunodeficiency virus (HIV) is an important challenge to human health. The patients with chronic infection have a gradually decrease of CD4+ T cells and eventually develop into acquired immunodeficiency syndrome (AIDS). Most HIV infected patients have received full virological suppression and immunological restoration due to antiretroviral therapy (ART), which improved their survival rate. After the initiation of ART, some patients get rapidly deteriorating clinical symptoms or even death, even though HIV replication is suppressed and CD4+ T lymphocytes raise, which called immune reconstruction inflammatory syndrome (IRIS). Clinical observations suggest that IRIS may be associated with a serious opportunistic infection and a very late onset of HIV/AIDS, but there are many unknowns from diagnosis to treatment and pathogenesis. This article reviews the incidence, the development of clinical features, related mechanisms and treatment strategies and other aspects of the disease.

Criptococosis cerebral, voriconazol, niveles plasmáticos y síndrome de reconstitución inmune: reporte de un caso / Cerebral cryptococcosis and immune reconstitution inflammatory syndrome: case report

We report a 45-year-old male with AIDS who had a Cryptococcus neoformans central nervous system infection. He was treated with amphotericin B deoxycholate subsequently changed to voriconazole due to systemic toxicity of the former. Plasma levels of voriconazole were insufficient with a standard dose (0.7 μg/mL), therefore, the dose was increased thereafter to reach appropriate levels (4.5 μg/mL). Anti-retroviral therapy was started five weeks after voriconazole initiation with non-interacting drugs and he was discharged after a favorable evolution. He was re-admitted three months later due to seizures; a brain magnetic resonance showed new sub-cortical nodules. After excluding alternative causes and demonstrating fungal eradication, an immune reconstitution inflammatory syndrome (IRIS) event was suspected and treated with a short course of steroids. His evolution was satisfactory.

Cutaneous tuberculosis and HIV infection at a referral centre in Rio de Janeiro, Brazil

BACKGROUND Cutaneous tuberculosis (CTB) is a rare extrapulmonary form of tuberculosis (TB). Despite the increase in the number of cases of TB and HIV, few cases of CTB have been reported. OBJECTIVE To describe CTB cases among patients with HIV infection from a cohort with tuberculosis. METHODS We describe a series of 15 CTB and HIV cases, based on secondary data from 2000 to 2016. Diagnosis was based on isolation of Mycobacterium tuberculosis in culture or clinical response to anti-tuberculous treatment associated with positive smear or histopathologic findings from affected skin or an adjacent lymph node. FINDINGS Scrofuloderma was present in 12 (80%) patients and solitary gumma in three (20%) patients. One case of scrofuloderma was associated with papulonecrotic tuberculid. Seven (46.6%) patients had pulmonary TB. Diagnosis was based on culture in nine patients (60%). The median CD4 cell count was 262 cells/µL. All patients were cured at the end of treatment (median time 6 months). Three patients presented with immune reconstitution inflammatory syndrome. CONCLUSIONS In this study, CTB associated with HIV infection presented as localised forms or in association with pulmonary TB. In patients with HIV who have subacute and chronic skin lesions, CTB should be considered in differential diagnosis, which may represent a good opportunity for early diagnosis of active TB.

Síndrome inflamatória de reconstituição imune como causa de hepatite autoimune e insuficiência hepática aguda / Immune reconstitution inflammatory syndrome as a cause of autoimmune hepatitis and acute liver failure

RESUMO A insuficiência hepática aguda é uma síndrome rara com elevada mortalidade e frequentemente reconhecida de forma tardia. Os médicos intensivistas desempenham um papel fundamental na suspeição diagnóstica e no manejo das disfunções múltiplo-orgânicas características desta entidade. A síndrome inflamatória de reconstituição imune é uma entidade que se caracteriza pela piora paradoxal do quadro prévio do paciente, após o início de antirretrovirais, desencadeada contra patógenos presentes no hospedeiro ou autoantígenos. A hepatite autoimune tem sido recentemente descrita como uma destas manifestações autoimunes. Os autores relatam o primeiro caso com evolução à insuficiência hepática aguda e óbito em poucos dias após o desenvolvimento de encefalopatia, revisam os casos de hepatite autoimune descritos e tecem comentários sobre as possibilidades terapêuticas neste contexto.

ABSTRACT Acute liver failure is a rare syndrome with high mortality and is often diagnosed late. Intensivist physicians play fundamental roles in the diagnostic suspicion and the management of the multiple-organic dysfunctions characteristic of this entity. Immune reconstitution inflammatory syndrome is an entity that is characterized by the paradoxical worsening of the patient's previous condition, after the initiation of antiretrovirals, triggered against either pathogens present in the host or autoantigens. Autoimmune hepatitis has recently been described as one of these autoimmune manifestations. The authors report the first case with evolution to acute liver failure and death within a few days after the development of encephalopathy, review the cases of autoimmune hepatitis described and comment on the therapeutic possibilities in this context.

CD4 + T cell depletion in HIV infection and immune reconstitution following antiretroviral therapy / 中国医师杂志

The hallmarks of HIV infection include progressive CD4+T cell depletion and chronic immune activation.Effective antiretroviral therapy (ART) can restore CD4 +T cell counts and related immune responses to various opportunistic pathogens.On some occasions,improvement in the immune system leads to immune reconstitution inflammatory syndrome shortly after ART initiation.On the other hand,some patients fail to achieve a normal CD4 + T cell count despite long-term suppressive ART.Multiple studies have demonstrated that persistent immune activation and inflammation are closely associated with suboptimal immune recovery although the underlining mechanisms remain widely debated.

Unmasking histoplasmosis immune reconstitution inflammatory syndrome in a patient recently started on antiretroviral therapy

Histoplasmosis is the most common endemic mycoses among HIV-infected people. Patients with suppressed cell immunity mainly due to HIV are at increased risk of disseminated disease. Dermatological manifestations of immune reconstitution inflammatory syndrome (IRIS) and cutaneous manifestations of histoplasmosis similar to an IRIS event have been previously described. We report the case of a 43-year-old male who presented with cutaneous disseminated histoplasmosis due to Histoplasma capsulatum var. capsulatum 4 months after the onset of the antiretroviral therapy and some improvement in the immune reconstitution. After 2 weeks of amphotericin B and itraconazole therapy, the scheduled treatment involved fluconazole maintenance therapy, which resulted in an improvement of his skin lesions.

Lepromatous leprosy and human immunodeficiency virus co-infection associated with phenomenon of Lucio versus immune reconstitution inflammatory syndrome / Lepra lepromatosa y coinfección con el virus de la inmunodeficiencia humana asociada a fenómeno de Lucio versus síndrome inflamatorio de reconstitución inmune

Diffuse lepromatous leprosy (DLL) is a severe clinical outcome of lepromatous leprosy (LL). The aetiologic cause is believed to be different from Mycobacterium leprae. A new species, Mycobacterium lepromatosis, was identified from a group of Mexican patients with DLL, and severe leprosy reactional state type 3 (Lucio's phenomenon). However, a total sequencing of its genome is necessary to prove the existence of this new species. This is a report on a non-typical Colombian case of leprosy - HIV coinfection, associated with an immune reconstitution inflammatory syndrome clinically compatible with a leprosy reaction type 3 or Lucio's phenomenon.

La lepra difusa (LLD) es una variedad de la lepra lepromatosa (LL), frecuente enMéxico. El agente etiológico se cree que es diferente a Mycobacterium leprae y se considerauna especie nueva denominada Mycobacterium lepromatosis, hecho que no se ha comprobado.El reporte de este caso se realiza para dar a conocer el cuadro clínico atípico que presentóuna paciente colombiana con coinfección VIH---LL variedad difusa (LLD), asociado a síndromede reconstitución inmunológica, compatible clínicamente con una leprorreacción tipo 3 o fenó-meno de Lucio.

Infecciones pulmonares en pacientes con VIH 20 años después de la terapia antirretroviral combinada. ¿Qué ha cambiado? / Pulmonary infections in patients with HIV, 20 years after combined antiretroviraltherapy. What has changed?

Introducción: Antes del año 1996, la infección por el virus de la inmunodeficiencia humana (VIH) era considerada una condición fatal; sin embargo, con la introducción de la terapia antirretroviral combinada, se transformó en una enfermedad crónica con gran incremento en su expectativa de vida. A pesar de esta terapia, existen una serie de complicaciones a las que los individuos con VIH están expuestos. El pulmón es el órgano más comúnmente afectado. Las infecciones oportunistas como la neumonía por Pneumocystis jirovecii , el compromiso pulmonar asociado a histoplasmosis, tuberculosis y micobacterias no tuberculosas, entre otras, aún son condiciones que amenazan a esta población. Objetivo: Esta revisión pretende abordar los cambios en el diagnóstico, pronóstico y epidemiología de los pacientes con VIH e infecciones pulmonares, luego de la introducción de la terapia antirretroviral combinada. Metodología: Se revisaron las bases de datos electrónicas MEDLINE (pubmed), EMBASE, SciELOy LILACS. Se incluyeron revisiones sistemáticas, ensayos clínicos aleatorizados, estudios controlados, series de tiempo, « antes y después ¼ , estudios observacionales desde el año 1995 hastadiciembre de 2014, así como datos epidemiológicos de la OMS. Conclusiones: Después de casi 20 años de su introducción, la terapia antirretroviral combinadaha modificado la historia natural de la infección por VIH, con disminución en la frecuencia depresentación y mortalidad relacionada con la mayoría de los patógenos que comprometen eltracto respiratorio.

Background: Prior to 1996, HIV was considered practically fatal. However, after highly active antiretroviral therapy was introduced, HIV became a chronic disease with a great increase in life expectancy. Despite this therapy, there are many complications to which an HIV infected person is exposed, with the lung the most commonly affected organ. Opportunistic infections such as pneumocystis pneumonia, histoplasmosis, tuberculosis, nontuberculous mycobacteria, among others, are still important threats to the HIV population. Objective: This review aims to address changes in the diagnosis, prognosis and epidemiology of HIV-infected patients with lung infections since the introduction of highly active antiretroviral therapy was introduced. Methodology: The electronic databases MEDLINE (PubMed), EMBASE, LILACS and SciELO were reviewed. Systematic reviews, randomised, controlled studies, case series, « before and after ¼ ,observational studies from 1995 until December 2014 were included in addition to epidemiological data from the WHO. Conclusions: After nearly 20 years since its introduction, combined antiretroviral therapy has changed the natural history of HIV infection, with a decrease in the frequency of occurrence and mortality related to most pathogens involving the respiratory tract.

Natalizumab-Related Progressive Multifocal Leukoencephalopathy-Immune Reconstitution Inflammatory Syndrome: A Case Report Highlighting Clinical and MRI Features

Multiple sclerosis (MS) patients treated with natalizumab often face the uncommon but severe complication of developing progressive multifocal leukoencephalopathy (PML). PML may be further complicated by immune reconstitution inflammatory syndrome (IRIS) after the removal of the drug. Since both PML and IRIS are associated with high morbidity and mortality rates, early clinical and radiological diagnosis of these complications is of paramount importance. Here, we report a case of an adult male patient who was diagnosed with PML after receiving natalizumab therapy for 6 years for the treatment of MS. Upon cessation of natalizumab, he presented with a paradoxical worsening of clinical and radiological findings consistent with an inflammatory brain injury due to IRIS. He was treated with high dose corticosteroid therapy followed by a gradual improvement in clinical and imaging findings. This article illustrates the magnetic resonance imaging (MRI) features of natalizumab‑associated PML-IRIS, along with a brief overview of its clinical features, complications and management strategies.

Unmasking Granulomatous Pneumocystis jirovecii Pneumonia with Nodular Opacity in an HIV-Infected Patient after Initiation of Antiretroviral Therapy

Pneumocystis jirovecii pneumonia (PJP) in patients with HIV infection can, in rare cases, present with pulmonary nodules that histologically involve granulomatous inflammation. This report describes an intriguing case of granulomatous PJP with pulmonary nodules after commencing antiretroviral therapy (ART) in an HIV-infected patient without respiratory signs or symptoms. Diagnosis of granulomatous PJP was only achieved through thoracoscopic lung biopsy. This case suggests that granulomatous PJP should be considered in the differential diagnosis of pulmonary nodules in HIV-infected patients for unmasking immune reconstitution inflammatory syndrome manifestation after initiation of ART.