Respiratory Medicine Case Reports (Jan 2023)

Acute exacerbation of idiopathic pulmonary fibrosis after bivalent {tozinameran and famtozinameran} mRNA COVID-19 vaccination

  • Kenji Tsumura,
  • Yoshiaki Zaizen,
  • Shushi Umemoto,
  • Shingo Tsuneyoshi,
  • Goushi Matama,
  • Masaki Okamoto,
  • Masaki Tominaga,
  • Tomoaki Hoshino

Journal volume & issue
Vol. 46
p. 101960

Abstract

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An 82-year-old man diagnosed with interstitial lung disease through computed tomography (CT) 1 year prior received a bivalent (tozinameran and famtozinameran) mRNA COVID-19 vaccine. He developed respiratory symptoms 1.5 months later, and chest high-resolution CT revealed new ground-glass opacities showing traction bronchiectasis. Transbronchial lung cryobiopsy revealed organizing acute lung injury and fibrosis with architectural destruction. The patient was diagnosed with an acute exacerbation of idiopathic pulmonary fibrosis (AE-IPF). The bivalent mRNA COVID-19 vaccination was determined as the cause of the AE-IPF based on detailed medical history and examination findings. High-dose corticosteroid therapy improved the patient's symptoms and radiological findings.

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