Supraclavicular lymphadenopathy after COVID-19 vaccination in Korea: serial follow-up using ultrasonography

Clin Imaging. 2021 Nov:79:201-203. doi: 10.1016/j.clinimag.2021.05.031. Epub 2021 Jun 5.


We present serial sonographic findings of a case of supraclavicular lymphadenopathy that occurred after COVID-19 vaccination. Ipsilateral lymphadenopathy near the vaccine injection site following COVID-19 vaccination is a rather uncommon but expected adverse reaction. While axillary lymphadenopathy is more common, cases of supraclavicular lymphadenopathy in the setting of recent vaccination against COVID-19 are also being reported. Radiologists as well as referring physicians should be aware of this self-limiting process along with its ultrasonographic features and manage patients conservatively rather than performing an unnecessary immediate biopsy.

Keywords: COVID-19; Lymphadenopathy; Ultrasonography; Vaccines.

Publication types

  • Case Reports

MeSH terms

  • COVID-19 Vaccines
  • COVID-19*
  • Follow-Up Studies
  • Humans
  • Lymphadenopathy* / diagnostic imaging
  • Lymphadenopathy* / etiology
  • Republic of Korea / epidemiology
  • SARS-CoV-2
  • Ultrasonography
  • Vaccination / adverse effects


  • COVID-19 Vaccines