TY - JOUR T1 - Case of acute arthritis following SARS-CoV-2 infection JF - Annals of the Rheumatic Diseases JO - Ann Rheum Dis SP - e101 LP - e101 DO - 10.1136/annrheumdis-2020-218281 VL - 80 IS - 6 AU - Naoto Yokogawa AU - Naoto Minematsu AU - Harutaka Katano AU - Tadaki Suzuki Y1 - 2021/06/01 UR - http://ard.bmj.com/content/80/6/e101.abstract N2 - In a recent issue of ARD, López-González and colleagues reported case series of acute arthritis during COVID-19 admission; the authors concluded that all four cases of acute arthritis in their report were due to crystal-proven gout flares or calcium pyrophosphate deposition disease.1 Here we would like to share another case of COVID-19 presenting delayed arthritis without crystal deposition.A 57-year-old, male, Japanese patient with a history of hypertension and hyperlipidaemia was admitted to our hospital with cough, fever and malaise of 3 days’ duration. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA was positive at admission on real-time (RT) PCR using nasopharyngeal swabs (SRL Inc). Chest X-rays and CT showed multiple, peripheral, ground-glass opacities … ER -