Fig. 2
From: Classic Kaposi sarcoma in a patient of Miao ethnicity followed up for 7 years: a case report
Dynamic histopathological changes in the lesion of the right foot in this patient. Haematoxylin and eosin staining (×100 original magnification photomicrograph) showing proliferation of fusiform cells and endothelial cells, with extravasation of red blood cells and intervening slit-like spaces in April 2010 (a) and decreased cell proliferation and increased deposition of hemosiderin in July 2016 (b). Histology and immunohistochemistry show positivity for CD31, CD34, D2-40 and Ki67 (c, d, e, f)