TNFAIP6 and keloid: In the dermis overlying keloid lesions, spindle-shaped fibroblast-associated TSG-6 and IαI staining were seen (Figs. 4c,f,i,l), while the fibroblast-associated TSG-6 (Fig. 5a) and IαI (Fig. 5b,c,d) staining within keloid lesions was more rounded in appearance, consistent with the morphology of keloid fibroblasts.