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    Cytomegalovirus Ileitis in a Patient with Acquired Immunodeficiency Syndrome (AIDS): A Case Report of Survival with Surgical Management
    (Sociedad Espanola de Patologia Digestiva (SEPD), 2024)
    Diego Ruedi
    ;
    Alexandra Ginesta
    ;
    Alejandra Gallardo
    ;
    Antonio Rollán
    ;
    Roque Saenz
      2
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    Item type:Publication,
    Concordance of Helicobacter pylori Detection Methods in Symptomatic Children and Adolescents
    (MDPI AG, 2025-03-04)
    Camila Cabrera
    ;
    Yanira Campusano
    ;
    Joaquín Torres
    ;
    Dinka Ivulic
    ;
    Valeria Galvez
    Background: Helicobacter pylori is the most prevalent chronic bacterial infection globally, acquired mostly during childhood. It is associated with chronic gastritis, peptic ulcer disease, and gastric cancer. Due to challenges in culturing H. pylori, diagnostic reference standards often rely on combining ≥2 non-culture, biopsy-based methods. Histology with Giemsa staining is widely used in clinical settings due to its low cost and reliable performance. Methods: This study evaluated the concordance between histology with Giemsa staining as the reference standard and other diagnostic methods, including the rapid urease test (RUT), ureA RT-PCR, 16S sequencing, and anti-H. pylori serum IgG. Positive percent of agreement (PPA), negative percent of agreement (NPA) and concordance kappa index were calculated. Results: A total of 120 patients (41 positive and 79 negative by Giemsa staining) were analyzed. Among the methods tested, RT-PCR for ureA showed the best performance (PPA = 94.7%, NPA = 98.6%, kappa = 0.939), while RUT underperformed compared with expectations (PPA = 65.9%, NPA = 97.5%, kappa = 0.681). Serology had the lowest performance (PPA = 53.7%, NPA = 96.1%, kappa = 0.548). Conclusions: The combination of histology with Giemsa staining and ureA RT-PCR achieved the highest detection rate and strongest agreement.</jats:p>
      1
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    Item type:Publication,
    Páncreas Heterotópico en Intestino Delgado: Serie de casos con correlación anatomopatológica
    (2022) ; ;
    Maria Ignacia Fauré
    ;
    Pablo González Valenzuela
    ;
    Elisa Benoit
    <jats:p>El páncreas heterotópico corresponde a tejido pancreático fuera de su localización habitual. Dentro de sus localizaciones más frecuentes, se encuentran el duodeno, el estómago y el yeyuno proximal. En la mayoría de los casos es un hallazgo imagenológico incidental, cuyo diagnóstico definitivo se obtiene a través de un estudio histológico, ya que sus características no son patognomónicas. En este trabajo describimos una serie de cuatro casos de páncreas heterotópicos como nódulos yeyunales incidentales, visualizados mediante tomografía computada y tomografía por emisión de positrones, todos con confirmación histológica posquirúrgica.</jats:p>
      1  1
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    Item type:Publication,
    Miopatías inflamatorias idiopáticas: una mirada actualizada al diagnóstico y el manejo
    (2019)
    IGNACIO JAVIER ACOSTA CARRASCO
    ;
    ;
    Paula Jara
    ;
    Francisca Pino
    ;
    Alejandra Gallardo
    Scopus© Citations 12  2
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    Item type:Publication,
    Gastric intramural pseudocyst in a heterotopic pancreas causing gastric outlet obstruction. Report of one case
    (2018)
    GIANCARLO SCHIAPPACASSE FAUNDES
    ;
    Fabián Villacrés
    ;
    Cristián Cavalla
    ;
    Franco Orellana
    ;
    Alejandra Gallardo
      25Scopus© Citations 2