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Transient monoarthritis and psoriatic skin lesions following COVID-19
  1. Ludovico De Stefano1,2,
  2. Silvia Rossi1,
  3. Carlomaurizio Montecucco1,2,
  4. Serena Bugatti1,2
  1. 1 Division of Rheumatology, IRCCS S Matteo, Pavia, Italy
  2. 2 Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
  1. Correspondence to Dr Ludovico De Stefano, Division of Rheumatology, IRCCS S Matteo, Pavia 27100, Italy; ludovico.destefano01{at}

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Emerging reports have described the possible occurrence of arthritis in patients infected with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).1–3 Apart from crystal-induced arthritis,1 Yokogawa et al 2 and Alivernini et al 3 both described the onset of inflammatory arthritis with the characteristics of viral arthritis over the course of COVID-19. Here we would like to share a different case of monarthritis associated with psoriatic skin lesions presenting after resolution of SARS-CoV-2 infection. In April 2020, a patient in his 30s was admitted to our early arthritis outpatient clinic due to a 2-week history of painful limitation of the right elbow. The patient had no previous history of arthritis, back pain, enthesopathy, dactylitis, psoriasis (PsO) or other extra-articular symptoms of axial spondylarthritis, nor familiarity for rheumatic diseases and/or PsO. Forty days earlier, the patient had been suffering from arthromyalgia, fatigue, diarrhoea and anosmia, and had been diagnosed with COVID-19 based on reverse transcription (RT-PCR) detection of SARS-CoV-2 following nasopharingeal swab. Blood test analysis …

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  • Contributors LDS contributed to the conception of the work and the acquisition of the patient’s data and drafted the work. SR contributed to the acquisition of data and revised the manuscript critically for important intellectual content. CM revised the manuscript critically for important intellectual content. SB contributed to the conception of the work and revised the manuscript critically for important intellectual content. All authors gave the final approval of the version to be published.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Patient and public involvement Patients and/or the public were involved in the design, or conduct, or reporting, or dissemination plans of this research. Refer to the Methods section for further details.

  • Provenance and peer review Not commissioned; internally peer reviewed.