Absceso de psoas iliaco: un desafío diagnóstico / Psoas-Iliac Abscess a dignotic challengen

El absceso de músculo psoas iliaco se considera una rare-za. Su detección ha mejorado con la utilización de imágenes como la tomografía computada o la resonancia magnética. Presentamos una revisión de casos de absceso de psoas-iliaco internados entre julio de 2015 y febrero de 2018 en un hospital de CABA, Argentina.En este periodo se diagnosticaron un paciente conside-rado de origen primario y ocho de origen secundario. Se observó predominio de colecciones asociadas a es-pondilodiscitis. El síntoma más frecuente fue la fiebre. Staphylococcus aureus fue el germen más rescatado en muestras microbiológicas. Se debe tener alto índice de sospecha de esta patología ante la presencia de fiebre, dolor lumbar y en ocasiones alteración de la marcha. El empleo de antibióticos de amplio espectro sumado a la evacuación de colecciones constituyen la estrategia más efectiva

Psoas-iliac muscle abscess is considered a rarity, the use of images such as computed tomography or magnetic reso-nance imaging has improved its detection.This study reviews cases of psoas-iliac abscess in hospi-talized patients between July 2015 and February 2018 in a hospital in CABA, Argentina.In one of the patients the origin was considered primary ,while in the other eight it was secondary. There was a pre-dominance of collections associated with spondylodiscitis. The most frequent symptom was fever. Staphylococcus au-reus was the most frequent organism obtained in microbio-logical samples. A high level of suspicion must be held in the presence of fever, lumbar pain and sometimes alteration of the gait. The use of broad spectrum antibiotics in addition to evacuation of collections is the most effective strategy.

Sífilis anorrectal: una entidad subdiagnosticada. Casuística de un hospital público de la Ciudad Autónoma de Buenos Aires / Anorectal syphilis: an underdiagnosticated entity. Casuistry of a public hospital in the autonomous city of Buenos Aires

Introducción: Las infecciones de transmisión sexual (ITS) afectan anualmente a millones de personas. La sífilis aumenta tanto a nivel mundial como nacional. El sexo anorreceptivo es factor predisponente y hombres que tienen sexo con hombres (HSH) son vulnerables. Las lesiones anales en estadio primario provocan intensa proctalgia y en estadio secundario pueden simular condilomas virales, que si resuelven espontáneamente quedan sin diagnóstico etiológico. Métodos: Estudio descriptivo, ambispectivo, transversal. Revisión de registros de pacientes atendidos en coloproctología del Hospital Fernández (01/01/2015 - 01/03/2019). Se incluyeron pacientes con serología confirmatoria. Variables analizadas: sexo, edad, diagnóstico de derivación, HIV, otras ITS, sexo anal/oro-anal, estadio, clínica y casos/año.Resultados: Setenta y siete casos (61 hombres, 12 mujeres, 4 mujeres trans). Edad mediana: 30 años (rango: 18 - 72), 48% <30 años, 83% no utilizó preservativo (100% de los HIV+). Diecisiete casos (22%) detectados durante pesquisa de Chlamydia. Cincuenta y ocho pacientes (75%) presentaron ITS asociada. Coexistieron sífilis, HIV y linfogranuloma venéreo (LGV) en 8 HSH. Manifestaciones observadas: proctalgia (77%), proctorragia (55%), secreción (53%) y úlcera anal (51%). 50% de mujeres llegaron con diagnóstico erróneo. Casos/año: 6 en 2015, 13 en 2016, 21 en 2017, 31 en 2018 y 6 en primer bimestre de 2019.Conclusiones: Se detectó aumento progresivo de casos de sífilis anorrectal (mayormente en HSH), que aun siendo HIV+ no usa preservativo. Actualmente debe sospecharse asociación de sífilis con LGV en HSH HIV+. La similitud clínica con patologías no venéreas y la remisión espontánea de lesiones obliga a testearla para evitar su progresión y cortar la cadena de contactos.

Introduction: STIs affect millions of people annually. Syphilis increases both globally and nationally. Anoreceptive sex is a predisposing factor and men who have sex with men (MSM) are vulnerable. The anal lesions in primary stage cause in-tense proctalgia and in secondary stage they can simulate viral condylomas, that if they resolve spontaneously might remain without etiological diagnosis.Methods: Descriptive, ambispective, cross-sectional study. Review of records of patients seen in coloproctology at the Fernández Hospital (01/01/2015 - 03/01/2019). Patients with confirmatory serology were included. Variables ana-lyzed: sex, age, derivation diagnosis, HIV, other STDs, anal sex / oro-anal, stage, clinic and cases/year.Results: Seventy-seven cases (61 men, 12 women, 4 trans-women). Mean age of 30 years (range: 18 - 72), 48% <30 years. 83% did not use condoms (100% of HIV +). Sev-enteen cases (22%) detected during Chlamydia search. Fif-ty-eight patients (75%) had associated STIs. Syphilis, HIV and LGV coexisted in 8 MSM. Manifestations observed: proctalgia (77%), proctorrhagia (55%), discharge (53%), anal ulcer (51%). 50% of women arrived with inacurate diagnosis. Cases/year: 6 in 2015, 13 in 2016, 21 in 2017, 31 in 2018 and 6 in the first two months of 2019.Conclusions: There was a progressive increase in cases of anorectal syphilis (mostly MSM), that even when they are HIV +, does not use a condom. Currently, association of syphilis with LGV in MSM HIV + should be suspected. The clinical similarity with non-venereal pathologies and the spontaneous remission of lesions obliges to test it to avoid its progression and to break the chain of transmission

Determination of dehydroepiandrosterone and its biologically active oxygenated metabolites in human plasma evinces a hormonal imbalance during HIV-TB coinfection.

An estimated one third of the world's population is affected by latent tuberculosis (TB), which once active represents a leading cause of death among infectious diseases. Human immunodeficiency virus (HIV) infection is a main predisposing factor to TB reactivation. Individuals HIV-TB co-infected develop a chronic state of inflammation associated with hypothalamic-pituitary-adrenal (HPA) axis dysregulation. This results in a hormonal imbalance, disturbing the physiological levels of cortisol and dehydroepiandrosterone (DHEA). DHEA and its oxygenated metabolites androstenediol (AED), androstenetriol (AET) and 7-oxo-DHEA are immunomodulatory compounds that may regulate physiopathology in HIV-TB co-infection. In order to study possible changes in plasma levels of these hormones, we developed an approach based on high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). To our knowledge, this represents the first report of their simultaneous measurement in HIV-TB individuals and the comparison with healthy donors, obtaining statistically higher plasma levels of DHEA, AET and 7-oxo-DHEA in patients. Moreover, we found that concentrations of 7-oxo-DHEA positively correlated with absolute CD4+ T cell counts, nadir CD4+ T cell values and with individuals who presented TB restricted to the lungs. This research contributes to understanding the role of these hormones in HIV-TB and emphasizes the importance of deepening their study in this context.