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Vol. 57. Issue 1.
Pages 42-47 (January - March 2024)
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Vol. 57. Issue 1.
Pages 42-47 (January - March 2024)
Brief report
Kikuchi–Fujimoto disease type lymph node reaction with increased plasmacytoid dendritic cells may appear as a side effect following COVID-19 vaccination: Report of a case and literature review
Linfadenitis de tipo Kikuchi-Fujimoto con expansión de células dendríticas plasmocitoides como evento adverso asociado a la vacunación por COVID-19. Reporte de un caso y revisión de la literatura
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Germán Moreno de Juana,b, Amaia Pérez Del Barrioc, Eduardo Germán Herrera Romeroc, Mario González Ruizd, Santiago Montes Morenoa,b,
Corresponding author
santiago.montes@scsalud.es

Corresponding author.
a Anatomic Pathology Service, Hospital Universitario Marqués de Valdecilla/IDIVAL, Universidad de Cantabria, Santander, Spain
b Translational Hematopathology Lab, IDIVAL, Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Santander, Spain
c Radiology Service, Hospital Universitario Marqués de Valdecilla, Santander (Cantabria), Spain
d Centro de Farmacovigilancia de Cantabria – Servicio de Farmacología Clínica de Atención Primaria, Santander (Cantabria), Spain
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Rev Esp Patol. 2024;57:e1-e210.1016/j.patol.2023.10.001
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Table 1. Details from the patients diagnosed as Kikuchi–Fujimoto disease following SARS CoV2 vaccination to date.
Abstract

Subsequent to mass vaccination programs against COVID-19, diverse side effects have been described, both at the injection site, such as pain, redness and swelling, and systemic effects such as fatigue, headache, muscle or joint pain. On rare occasions, a lymphadenopathic syndrome may develop, raising the clinical suspicion of a lymphoproliferative disorder. We present the case of a 30-year-old woman who developed self-limiting left axillary lymphadenopathy following COVID-19 vaccination. To date, only seven similar cases with a complete clinicopathological description have been published, and fourteen cases have been notified to the European adverse events databases (Eudravigilance) in relationship with vaccination against COVID-19.

It is important to be aware of this potential complication when a lymphadenopathic syndrome develops following vaccination, to avoid unnecessary treatment.

Keywords:
COVID-19
Pandemic
Vaccination
Kikuchi–Fujimoto lymphadenitis
Necrotizing lymphadenitis
Resumen

Tras la vacunación masiva frente a la COVID-19 se han comenzado a describir diversos efectos adversos incluyendo efectos locales en el lugar de la inyección, como dolor, enrojecimiento, hinchazón, etc., y efectos sistémicos como fatiga, dolor de cabeza, dolor muscular o articular. Más infrecuentemente se pueden desarrollar cuadros linfadenopáticos sospechosos clínicamente de proceso linfoproliferativo. Presentamos el caso de una mujer de 30 años que desarrolló linfadenopatía axilar izquierda tras la vacunación contra la COVID-19 con hallazgos histopatológicos de linfadenopatía necrotizante de tipo Kikuchi y resolución espontánea. Hasta el momento se han publicado 7 casos con descripción clinicopatológica completa en la literatura y notificado 14 casos en la Red Europea de Farmacovigilancia en relación con la vacunación.

Es importante tener en cuenta esta entidad en linfadenopatías sospechosas de procesos linfoproliferativos en este contexto, para evitar un tratamiento innecesario.

Palabras clave:
COVID-19
Pandemia
Vacunación
Linfadenitis de Kikuchi-Fujimoto
Linfadenitis necrotizante

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