A Case of Myocarditis Presenting With a Hyperechoic Nodule After the First Dose of COVID-19 mRNA Vaccine

J Korean Med Sci. 2022 Apr 25;37(16):e131. doi: 10.3346/jkms.2022.37.e131.

Abstract

Myocarditis and/or pericarditis have been reported as adverse events following coronavirus disease 2019 (COVID-19) messenger RNA vaccination, with most cases occurring within 1 week after the second dose. We report a rare case of myocarditis after the first dose of the BNT162b2 (Pfizer-BioNTech) COVID-19 vaccine in a 17-year-old boy. Here, we describe the laboratory, electrocardiographic, and imaging findings of myocarditis.

Keywords: Adolescent; COVID-19; Myocarditis; mRNA Vaccines.

Publication types

  • Case Reports

MeSH terms

  • Adolescent
  • BNT162 Vaccine
  • COVID-19 Vaccines / adverse effects
  • COVID-19*
  • Humans
  • Male
  • Myocarditis* / diagnosis
  • Myocarditis* / etiology
  • RNA, Messenger
  • Vaccines, Synthetic
  • mRNA Vaccines

Substances

  • COVID-19 Vaccines
  • RNA, Messenger
  • Vaccines, Synthetic
  • mRNA Vaccines
  • BNT162 Vaccine