{Reference Type}: Case Reports
{Title}: A case report of monoarthritis in a COVID-19 patient and literature review: Simple actions for complex times.
{Author}: Cincinelli G;Di Taranto R;Orsini F;Rindone A;Murgo A;Caporali R;
{Journal}: Medicine (Baltimore)
{Volume}: 100
{Issue}: 23
{Year}: Jun 2021 11
{Factor}: 1.817
{DOI}: 10.1097/MD.0000000000026089
{Abstract}: <B>BACKGROUND: </B>COVID-19 presentation is multifaceted and up to 44% of patients affected by COVID-19 experience musculoskeletal complaints, mostly in the form of diffuse aspecific arthromyalgias. Nevertheless, only a few cases of arthritis following SARS-CoV2 infection are reported.<BR><B>METHODS: </B>A 27-year-old man affected by nail psoriasis presented with monoarthritis 2 weeks after being diagnosed with COVID-19.<BR><B>METHODS: </B>Diagnostic work-up and differential diagnosis were made difficult by patient isolation, absence of lab tests, and his visit via telemedicine, even though signs of first metacarpophalangeal joint involvement were clear.<BR><B>METHODS: </B>Due to the inefficacy of acetaminophen and nonsteroidal anti-inflammatory drugs, the patient was prescribed oral steroids with a rapid benefit.<BR><B>RESULTS: </B>The patient's response to oral steroid was prompt and maintained even after therapy tapering. Even so, a formal diagnosis was not possible due to a difficult diagnostic work-up and lack of a long-term follow-up.<BR><B>CONCLUSIONS: </B>Like many other viral diseases, SARS-CoV2 can play as a causative agent or as a trigger for inflammatory arthritis development in predisposed individuals.