case_images: PMC5925130_01
case_images: Urticarial rash on the back (a) and side of the torso (b).
case_images: CRIRH2018-5416907.001.jpg
case_images: PMC5925130_01_CRIRH2018-5416907.001.jpg
case_images: fig1
case_images: Nasonova Research Institute of Rheumatology in November 2013 with complaints of weakness, fatigue, urticaria without evident pruritus (Figure 1), fever up to 39 C, and pain in the bilateral legs and knees.