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          Abstract

          The World Health Organization defines the multisystem inflammatory syndrome in children (MIS-C) as a new syndrome reported in patients aged < 19 years old who have a history of exposure to SARS-CoV-2. The onset of this syndrome is characterized by persistent fever that is associated with lethargy, abdominal pain, vomiting and/or diarrhea, and, less frequently, rash and conjunctivitis. The course and severity of the signs and symptoms vary; in some children, MIS-C worsens rapidly and can lead to hypotension, cariogenic shock, or even damage to multiple organs. The characteristic laboratory findings are elevated markers of inflammation and heart dysfunction. The most common radiological findings are cardiomegaly, pleural effusion, signs of heart failure, ascites, and inflammatory changes in the right iliac fossa. In the context of the current COVID-19 pandemic, radiologists need to know the clinical, laboratory, and radiological characteristics of this syndrome to ensure the correct diagnosis.

          Translated abstract

          El síndrome inflamatorio multisistémico pediátrico vinculado a la COVID-19 (SIM-PedS) es, según la Organización Mundial de la Salud, un nuevo síndrome descrito en pacientes menores de 19 años con historia previa de exposición a SARS-CoV-2. La presentación inicial de este síndrome se caracteriza por fiebre persistente que asocia debilidad, dolor abdominal, vómitos y/o diarrea. Menos frecuentemente los pacientes pueden presentar también erupción cutánea y conjuntivitis. El cuadro clínico tiene expresividad y evolución variables, por lo que algunos pacientes pediátricos afectados pueden empeorar rápidamente, desarrollando desde hipotensión y shock cardiogénico a daño multiorgánico. Los hallazgos analíticos característicos del síndrome consisten en elevación de marcadores inflamatorios y disfunción cardíaca. Los hallazgos radiológicos más frecuentes son cardiomegalia, derrame pleural, signos de insuficiencia cardíaca, ascitis y cambios inflamatorios en la fosa ilíaca derecha. En la pandemia actual por COVID-19 es necesario que el radiólogo conozca las características clínico-analíticas y radiológicas de este síndrome para realizar un correcto diagnóstico.

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          Author and article information

          Journal
          Radiologia (Engl Ed)
          Radiologia (Engl Ed)
          Radiologia
          SERAM. Published by Elsevier España, S.L.U.
          2173-5107
          5 June 2021
          5 June 2021
          Affiliations
          [a ]Servicio de Radiodiagnóstico, Hospital General de Teruel Obispo Polanco, Teruel, Spain
          [b ]Servicio de Radiodiagnóstico, Hospital Arnau de Vilanova de Valencia - Hospital de Llíria, Valencia, Spain
          [c ]Servicio de Radiodiagnóstico, Hospital General Universitario de Castellón, Castellón, Spain
          Author notes
          [* ]Corresponding author.
          Article
          S2173-5107(21)00075-6
          10.1016/j.rxeng.2021.03.005
          8179117
          e805a3a8-09fc-483b-a7b6-8c071824f9c7
          © 2021 SERAM. Published by Elsevier España, S.L.U. All rights reserved.

          Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

          History
          : 9 December 2020
          : 1 March 2021
          Categories
          Update in Radiology

          multisystem inflammatory syndrome in children,covid-19,sars-cov-2,síndrome inflamatorio multisistémico pediátrico,covid-19, sars-cov-2

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