Figures & data
Figure 1. Ulcerated plaque on the lower extremity and left hand. (a) The ulcer on the right lower leg. (b) Swelling on the back of left hand. Figure 1(c,d) 2 Months after treatment with certolizumab. (c) The right lower leg. (d) The back of left hand.
Figure 2. The biopsy of the skin lesion. Neutrophil infiltration, fibrous tissue proliferation below and around the ulcer, fibrinoid degeneration of some vascular walls, and a few lymphocytes and eosinophils around the blood vessels. (a) 40×, (b) 200×.
Data availability statement
Data sharing is not applicable to this article.