Dual-Positive MPO- and PR3-ANCA-Associated Vasculitis Following SARS-CoV-2 mRNA Booster Vaccination: A Case Report and Systematic Review.

As the coronavirus disease 2019 (COVID-19) pandemic is ongoing, and new variants of severe acute respiratory syndrome coronavirus type 2 (SARS-CoV-2) are emerging, vaccines are needed to protect individuals at high risk of complications and to potentially control disease outbreaks by herd immunity. After SARS-CoV-2 vaccination, antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV) presenting with a pulmonary hemorrhage has been described. Previous studies suggested that monocytes upregulate major histocompatibility complex (MHC) II cell surface receptor human leukocyte antigen receptor (HLA-DR) molecules in granulomatosis with polyangiitis (GPA) patients with proteinase 3 (PR3)- and myeloperoxidase (MPO)-ANCA seropositivity.

Severe Acute Respiratory Distress Syndrome during Infliximab Therapy in a Patient with Crohn Disease.

The occurrence of a noninfectious interstitial lung disease is a rare but life-threatening side effect of infliximab, an antitumor necrosis factor alpha antibody. The following case report of a patient with Crohn disease shows an extremely dramatic progression to a severe acute respiratory distress syndrome.

Acute respiratory distress syndrome after aspiration of lamp oil in a fire-eater: a case report.

Background: Fire-eater's pneumonia is an exogenous chemical pneumonitis after accidental aspiration of hydrocarbon fluids during the act of fire-eating. There have been few case reports in the literature regarding complications after fire-eating but so far none, to the best of our knowledge, have described such drastic and life-threatening pulmonary complications as in this case while only having swallowed a small amount of fluid.

Case Presentation: We present a case of fire-eater's pneumonia in a 28-year-old white man with severe pulmonary complications.