Cited by 192COVID-19 Clinical Research StudiesDermatological and COVID-19 studiesKawasaki Disease and Coronary Complications

COVID-19 vasculitis and novel vasculitis mimics

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McGonagle, Dennis, Bridgewood, Charlie, Ramanan, Athimalaipet V, Meaney, James F M, Watad, Abdulla·2021·The Lancet Rheumatology

Abstract

COVID-19 has been occasionally linked to histologically confirmed cutaneous vasculitis and a Kawasaki-like vasculitis, with these entities generally having minimal or no lung involvement and a good prognosis. Unlike these vasculitis types, patients with severe COVID-19 pneumonia can develop cutaneous vasculitis-like lesions and systemic arterial and venous thromboemboli, including cryptogenic strokes and other vasculopathy features. Proposed underlying mechanisms for these severe manifestations have encompassed immune dysregulation, including an anti-phospholipid syndrome-like state, complement activation, viral dissemination with direct systemic endothelial infection, viral RNAaemia with immunothrombosis, clotting pathway activation mediated by hypoxaemia, and immobility. In this Viewpoint, we highlight how imaging and post-mortem findings from patients with COVID-19 indicate a novel thrombosis in the pulmonary venous territory distal to the alveolar capillary bed, a territory that normally acts as a clot filtration system, which might represent an unappreciated nidus for systemic microembolism. Additionally, we suggest that this mechanism represents a novel vasculitis mimic related to COVID-19 that might lead to cryptogenic strokes across multivessel territories, acute kidney injury with haematuria, a skin vasculitis mimic, intestinal ischaemia, and other organ ischaemic manifestations. This finding is supported by pathological reports of extensive pulmonary venular thrombosis and peripheral organ thrombosis with pauci-immune cellular infiltrates. Therefore, severe COVID-19 pneumonia with extensive pulmonary intravascular coagulopathy might help to explain the numerous systemic complications of COVID-19, in which the demonstration of direct organ infection has not adequately explained the pathology.

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  • Acute arterial obstruction of the small intestinal vessels and mesenteric ischemia may appear due to hypercoagulability associated with SARS-CoV-2 infection, mucosal ischemia, viral dissemination, and endothelial cell invasion via ACE-2 receptors.

    “Acute arterial obstruction of the small intestinal vessels and mesenteric ischemia may appear due to hypercoagulability associated with SARS-CoV-2 infection, mucosal ischemia, viral dissemination, and endothelial cell invasion vis ACE-2 receptors [65,66].”

    From Acute mesenteric ischemia in COVID-19 patients (2021) · cites this paper as [66]

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  1. [20]Kolivras A Dehavay F Delplace D Coronavirus (COVID-19) infection-induced chilblains: a case report with histopathologic findings JAAD Case Rep 6 2020 489 492 32363225 PMC7194989
  2. [50]Fox SE Akmatbekov A Harbert JL Li G Quincy Brown J Vander Heide RS Pulmonary and cardiac pathology in African American patients with COVID-19: an autopsy series from New Orleans Lancet Respir Med 8 2020 681 686 32473124 PMC7255143
  3. [74]Merkler AE Parikh NS Mir S Risk of ischemic stroke in patients with COVID-19 versus patients with influenza JAMA Neurol 77 2020 1366 1372 PMC7333175 32614385
  4. [84]Magro C Mulvey JJ Berlin D Complement associated microvascular injury and thrombosis in the pathogenesis of severe COVID-19 infection: a report of five cases Transl Res 220 2020 1 13 32299776 PMC7158248

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Authors
McGonagle, D., Bridgewood, C., Ramanan, A. V., Meaney, J. F. M., & Watad, A.
Affiliations
  • University of Leeds (GB)
  • University Hospitals Bristol NHS Foundation Trust (GB)
  • Trinity College Dublin (IE)
Corresponding author
McGonagle, Dennis
Venue
The Lancet Rheumatology
Publisher
Elsevier BV
Published
2021-03
Volume
3
Issue
3
Pages
e224-e233
ISSN
2665-9913 (ISSN-L)
OpenAlex
W3120773459
Cited by
192
References
99
Citations by year
2026: 6 · 2025: 12 · 2024: 18 · 2023: 28 · 2022: 79 · 2021: 48
FWCI
5.06
Type
journal article
Language
en
Open access
Locations
  • The Lancet Rheumatology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Bristol Research (University of Bristol) (publishedVersion)
  • Explore Bristol Research (submittedVersion)
Topics
  • Health Sciences › Medicine › Infectious Diseases › COVID-19 Clinical Research Studies
  • Health Sciences › Medicine › Dermatology › Dermatological and COVID-19 studies
  • Health Sciences › Medicine › Surgery › Kawasaki Disease and Coronary Complications
Keywords
COVID-19 pandemic, vasculitis mimic, cutaneous vasculitis, intravascular coagulopathy, cryptogenic stroke, thromboembolism, microembolism, immune dysregulation, antiphospholipid syndrome, complement activation, endothelial cell infection, acute kidney injury, intestinal ischemia, severe pneumonia, autopsy findings

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