CD34 and Kaposi's sarcoma: Interestingly, although the majority of LANA+ cells appeared to be endothelial in origin, there were some CD34 negative but LANA+ cells, indicating that other cell types such as fibroblast, epithelial, dendritic and B cells demonstrated to support KSHV infection in vitro may also be present in KS tissues in vivo (Figure 1B) [24–26].