Case of acute arthritis following SARS-CoV-2 infection.

In a recent issue of ARD , Lopez-Gonzalez 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 in …