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Response to: ‘Ultrasound findings in palindromic rheumatism’ by Sanmarti et al
  1. Kulveer Mankia1,2,
  2. Maria-Antonietta D’Agostino3,
  3. Paul Emery1,2
  1. 1 Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Chapel Allerton Hospital, Leeds, UK
  2. 2 NIHR Leeds Musculoskeletal Biomedical Research Centre, Leeds, UK
  3. 3 Ambroise Paré Hospital, APHP, Université Versailles-Saint-Quentin en Yvelines - Rheumatology, Boulogne-Billancourt, France
  1. Correspondence to Dr Kulveer Mankia, Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Chapel Allerton Hospital, Leeds LS7 4SA, UK; k.s.mankia{at}leeds.ac.uk

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We thank Sanmarti et al 1 for their interest in our recent paper in which we describe the distinct imaging phenotype of palindromic rheumatism (PR).2 As the authors point out, we identified a high prevalence of ultrasound (US) extra-capsular inflammation in flares of PR, often without coexistent US synovitis. This US pattern was specific for PR and may be useful in distinguishing PR from early persistent arthritis.

In an earlier US study of a Spanish PR cohort, Sanmarti and colleagues performed US assessment in 10 patients during flares of PR3 and reported US power Doppler synovitis in 7, with 5 of these fulfilling criteria for US-defined synovitis. The authors did not identify US periarticular changes, and none of these patients had periarticular inflammation clinically. This imaging …

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Footnotes

  • Handling editor Josef S Smolen

  • 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 consent Not required.

  • Provenance and peer review Commissioned; internally peer reviewed.

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