Fat necrosis following inadvertent subcutaneous administration of influenza vaccination

Authors

  • Dan Li Department of Radiological Sciences, University of California Los Angeles, Los Angeles, California, USA
  • Kira Chow Musculoskeletal Section, Imaging Department, West Los Angeles Veterans Affairs, Los Angeles, California, USA
  • Joshua Leeman Musculoskeletal Section, Imaging Department, West Los Angeles Veterans Affairs, Los Angeles, California, USA

DOI:

https://doi.org/10.3941/jrcr.4760

Keywords:

Case report, Influenza vaccines, adverse effects, fat necrosis, magnetic resonance imaging, computed tomography, ultrasonography, radiography, subcutaneous injection ?

Abstract

Fat necrosis has been commonly described in the breast as a mimic for carcinoma, however only rare cases of subcutaneous fat necrosis in the extremities have been reported. We show the case of a 41-year-old woman who presented with fat necrosis after a routine influenza vaccination. Subcutaneous fat necrosis was diagnosed based on the ultrasound, radiographic, and magnetic resonance imaging appearance of the lesion. Identification of the characteristic imaging features of subcutaneous fat necrosis may benefit patients by expediting diagnosis and preventing unnecessary biopsies and surgical procedures.

41-year-old female with fat necrosis of the left upper extremity following influenza vaccination.

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Published

2024-07-30

Issue

Vol. 18 No. 7 (2024)

Section

General Radiology

License

Copyright (c) 2024 Journal of Radiology Case Reports

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