Fig. 2

a A low power image of Hematoxylin and Eosin (H&E) stained section is depicted here, demonstrating pattern of zonation with fibrinoid matrix deposition. Also, extravasation of red blood cells, proliferating atypical fibroblasts and so-called “ghosted” fat cells are seen. b A high power view of zonal fibrinoid matrix deposition with intervening proliferative fibroblasts is shown; a non-thrombosed vessel is present (top right). c A higher power view demonstrating plump and proliferative fibroblasts adjacent to focal fibrinoid changes