Figure 2. Micro-calcification in the upper-extremity arteries.
Von Kossa stain shows (A) an artery with significant micro-calcification (15%) and (B) an artery with mild micro-calcification (1%) in the medial layer from patients with advanced CKD, as well as (C) an artery with typical medial micro-calcification (0%) from a control subject. Calcification appears black in this stain.