Fever, weight loss, and leg myalgia in a 59-year-old man.

Abstract

In March, 2020, a 59-year-old man presented to Hospital Universitario 12 de Octubre, Madrid, Spain, with a 15-day history of fever, headache, leg myalgia, and weight loss (4 kg). Physical examination showed no pathological findings. Initial diagnostic workup showed an increased concentration of C-reactive protein (16 mg/dL) and lymphopenia (700 lymphocytes per μL). White blood cell count and concentrations of creatine kinase were normal (52 units per L; reference range: 34–171 units per L). Nasopharyngeal exudate was negative for influenza A and B, respiratory syncytial virus, and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).